Pesticidally Active Compounds

ABSTRACT

A pesticidally active combination comprising an HPPD-inhibiting herbicide in the form of an agrochemically acceptable salt and an insecticide is disclosed, provided that the HPPD inhibiting herbicide is not a compound of formula (A) wherein R a  is C 1-2  alkyl or chloro; R b  is hydrogen or C 1-4  alkyl; and R c  is C 1-4  alkyl is disclosed.

The present invention relates to a novel pesticidally active combination comprising a herbicidally active ingredient in the form of an agrochemically acceptable salt and one or more insecticidally active ingredients, and optionally one or more additional active ingredients. The invention relates also to a method of controlling unwanted growth in crops of useful plants.

The protection of crops from weeds and other pests that inhibits crop growth is a constantly recurring problem in agriculture. To help combat this problem, researchers in the field of synthetic chemistry have produced an extensive variety of chemicals and chemical formulations effective in the control of such unwanted pests. Chemical pesticides of many types have been disclosed in the literature and a large number are in commercial use. Commercial pesticides and some that are still in development are described in The Pesticide Manual 12^(th) Edition, published in 2000 by the British Crop Protection Council.

Agricultural pesticide manufacturers have identified the need for broad-spectrum pesticidally active products. Single active ingredient formulations rarely meet such broad-spectrum requirements, and thus combination products, perhaps containing up to four complementary biologically active ingredients, have been developed. Such products have several additional advantages e.g. elimination of tank mixing; reduction in inventory products; saving in time and money; and a reduction in the number of times the crop is sprayed.

One combination considered was a combination of an HPPD inhibiting herbicide with an insecticide. However, when tested, the crop damage seen was considerably increased, compared to that seen following application of the HPPD inhibiting herbicide alone. It was then surprisingly discovered by the inventors that if an agrochemically acceptable salt of the HPPD inhibitor was used a safening effect was seen and the crop damage caused by the combination was considerably reduced to an acceptable level.

Accordingly, the present invention provides a pesticidally active combination comprising an HPPD-inhibiting herbicide in the form of an agrochemically acceptable salt and an insecticide, provided that the HPPD-inhibiting herbicide is not a compound of formula (A)

wherein R^(a) is C₁₋₂ alkyl or chloro; R^(b) is hydrogen or C₁₋₄ alkyl; and R^(c) is C₁₋₄ alkyl.

The HPPD-inhibiting herbicides for use in the present invention are suitably selected from the group consisting of isoxazoles, triketones, pyrazoles, benzobicyclon and ketospiradox.

Suitably, the isoxazole is a compound of formula (IA)

wherein R is hydrogen or —CO₂R³;

R¹ is C₁₋₄ allyl or C₃₋₆ cycloalkyl optionally substituted by C₁₋₆ alkyl;

R² is independently selected from halogen, nitro, cyano, C₁₋₄ alkyl, C₁₋₄ haloalkyl, C₁₋₆ alkoxy, C₁₋₄ haloalkoxy, —(CR⁴R⁵)_(c)S(O)_(b)R⁶, S(O)_(b)R⁶, —OSO₂R⁶ and —N(R⁷)SO₂R⁶; or two groups R², on adjacent carbon atoms of the phenyl ring may, together with the carbon atoms to which they are attached, form a 5- or 6-membered saturated or unsaturated heterocyclic ring containing up to three ring heteroatoms selected from nitrogen, oxygen and sulphur, which ring may be optionally substituted by one or more groups selected from halogen, nitro, C₁₋₄ alkyl, C₁₋₄ alkoxy, C₁₋₄ haloalkyl, C₁₋₄ haloalkoxy and —S(O)_(b)R⁶, it being understood that a sulphur atom, where present in the ring, may be in the form of a group —SO— or—SO₂—;

R³ is C₁₋₄ alkyl;

R⁴ and R⁵ are independently hydrogen or C₁₋₄ alkyl;

R⁶ is C₁₋₄ alkyl, or phenyl or benzyl, each of phenyl and benzyl optionally bearing from one or five substituents which may be the same of different selected from the group consisting of halogen, C₁₋₄ alkyl, C₁₋₄ alkoxy, C₁₋₄ haloalkyl, C₁₋₄ haloalkoxy, nitro and —S(O)_(b)CH₃;

R⁷ is hydrogen or C₁₋₆ alkyl;

a is an integer from one to five;

b is zero, one or two; and

c is one or two (where c is two, the groups (CR⁴R⁵) may be the same or different.

Suitably R is hydrogen; R¹ is cyclopropyl; R² is halogen (preferably chloro), —S(O)_(b)CH₃, or C₁₋₄ haloalkyl (preferably trifluoromethyl); and a is two.

Particularly preferred compounds of formula (IA) include 5-cyclopropyl4-(2-methylsulfonyl-4-trifluoromethyl)benzoylisoxazole (isoxaflutole) and 4-(2-chloro-4-methylsulphonyl)benzoyl-5-cyclopropylisoxazole (isoxachlortole).

Suitably, the triketone is a compound of formula (IB),

wherein each R⁸ independently represents (C₁₋₄)allyl or —CO₂R¹¹;

R⁹ represents a halogen atom; a straight- or branched-chain alkyl or alkoxy group containing up to six carbon atoms which is optionally substituted by one or more groups —OR¹² or one or more halogen atoms; or a group selected from nitro, cyano, —CO₂R¹³, —S(O)_(f)R¹², —O(CH₂)_(g)OR¹², —COR¹³, —NR¹³R¹⁴, —SO₂NR¹³R¹⁴, —CONR¹³R¹⁴, —CSNR¹³R¹⁴ and —OSO₂R¹⁵;

each R¹⁰ independently represents halo, nitro, cyano, S(O)_(f)R¹⁶, OS(O)_(f)R¹⁶, C₁₋₆ alkyl, C₁₋₆ alkoxy, C₁₋₆ haloalkyl, C₁₋₆ haloalkoxy, carboxy, C₁₋₆ alkylcarbonyloxy, C₁₋₆ alkoxycarbonyl, C₁₋₆ alkylcarbonyl, amino, C₁₋₆ alkylamino, C₁₋₆ dialkylamino having independently the stated number of carbon atoms in each alkyl group, C₁₋₆ alkylcarbonylamino, C₁₋₆ alkoxycarbonylamino, C₁₋₆ alkylaminocarbonylamino, C₁₋₆ dialkylaminocarbonylamino having independently the stated number of carbon atoms in each alkyl group, C₁₋₆ alkoxycarbonyloxy, C₁₋₆ alkylaminocarbonyloxy, C₁₋₆ dialkylcarbonyloxy, phenylcarbonyl, substituted phenylcarbonyl, phenylcarbonyloxy, substituted phenylcarbonyloxy, phenylcarbonylamino, substituted phenylcarbonylamino, phenoxy or substituted phenoxy;

R¹¹ is C₁₋₄ alkyl;

R¹² represents a straight- or branched-chain alkyl group containing up to six carbon atoms which is optionally substituted by one or more halogen atoms;

R¹³ and R¹⁴ each independently represents a hydrogen atom; or a straight- or branched-chain alkyl group containing up to six carbon atoms which is optionally substituted by one or more halogen atoms;

R¹⁵ represents a straight-or branched-chain alkyl, alkenyl or alkynyl group containing up to six carbon atoms optionally substituted by one or more halogen atoms; or a cycloalkyl group containing from three to six carbon atoms;

R¹⁶ represents a straight- or branched-chain alkyl group containing up to six carbon atoms which is optionally substituted by one or more halogen atoms;

d is zero or an integer from one to six;

e is zero or an integer from one to four;

f is zero, one or two; and

g is one, two or three.

Suitably, R⁹ is chloro, bromo, nitro, cyano, C₁₋₄ alkyl, —CF₃, —S(O)_(f)R¹², or —OR¹²; each R¹⁰ is independently chloro, bromo, nitro, cyano, C₁₋₄ alkyl, —CF₃, —OR¹², —OS(O)_(f)R¹⁶ or S(O)_(f)R¹⁶; d is zero and e is one or two.

Preferred compounds of formula (IB) are 2-(2′-nitro4′-methylsulphonylbenzoyl)-1,3-cyclohexanedione (mesotrione), 2-(2′-nitro-4′-methylsulphonyloxybenzoyl)-1,3-cyclohexanedione, 2-(2′-chloro-4′-methylsulphonylbenzoyl)-1,3-cyclohexanedione (sulcotrione), 4,4-dimethyl-2-(4-methanesulphonyl-2-nitrobenzoyl)-1,3-cyclohexanedione, 2-(2-chloro-3-ethoxymethanesulphonylbenzoyl)-5-methyl-1,3-cyclohexanedione and 2-(2-chloro-3-ethoxy-4-ethanesulphonylbenzoyl)-5-methyl-1,3-cyclohexanedione; most preferably is 2-(2′-nitro-4′-methylsulphonyl benzoyl)1,3-cyclohexanedione.

The compounds of formula (IB) may exist in enolic tautomeric forms that may give rise to geometric isomers. Furthermore, in certain cases, the various substituents may contribute to optical isomerism and/or stereoisomerism. All such tautomeric forms, racemic mixtures and isomers are included within the scope of the present invention.

Alternatively, the triketone is a compound of formula (IC)

wherein V is C₁₋₂ alkylene, which may be mono- or poly-substituted by R²⁹; or, when R²¹ and R²² are other than C₂₋₃ alkylene, W may additionally be carbonyl, oxygen or —NR³⁰—;

W is CR³¹ or N(O)_(g);

R²⁰, R²¹, R²² and R²³ are independently hydrogen, C₁₋₄ alkyl, phenyl, C₁₋₄ alkoxy, halogen, hydroxy, cyano, hydroxycarbonyl or C₁₋₄ alkoxycarbonyl; or R²¹ and R²² together are C₂₋₃ alkylene, which may be mono- or poly-substituted by R²⁸;

R²⁴ is hydrogen, C₁₋₆ alkyl, C₁₋₆ haloalkyl, C₂₋₆ alkenyl, C₂₋₆ haloalkenyl, C₁₋₂ alkoxycarbonyl- or phenyl-substituted vinyl, C₂₋₆ alkynyl, C₂₋₆ haloalkynyl, trimethylsilyl-, hydroxy-, C₁₋₆ alkoxy-, C alkoxycarbonyl- or phenyl-substituted ethynyl, C₃₋₆ allenyl, C₃₋₆ cycloalkyl, halo- or C₁₋₃ alkoxymethyl-substituted C₃₋₆ cycloalkyl, C₁₋₆ alkoxy, C₃₋₆ alkenyloxy, C₃₋₆ alkynyloxy, C₁₋₆ haloalkoxy, C₃₋₆ haloalkenyloxy, cyano-C₁₋₄ alkoxy, C₁₋₄ alkoxy-C₁₋₄ alkoxy, C₁₋₄ alkylthio-C₁₋₄ alkoxy, C₁₋₄ alkylsulfinyl-C₁₋₄ alkoxy, C₁₋₄ alkylsulfonyl-C₁₋₄ alkoxy, C₁₋₄ alkoxycarbonyl-C₁₋₄ alkoxy, C₁₋₆ alkylthio, C₁₋₆ alkylsulfinyl, C₁₋₆ alkylsulfonyl, C₁₋₆ haloalkylthio, C₁₋₆ haloalkylsulfinyl, C₁₋₆ haloalkylsulfonyl, C₁₋₄ alkoxycarbonyl-C₁₋₄ alkylthio, C₁₋₄ alkoxycarbonyl-C I4 alkylsulfinyl, C₁₋₄ alkoxycarbonyl-C₁₋₄ alkylsulfonyl, C₁₋₆ alkylamino, di(C₁₋₆ alkyl)amino, C₁₋₃ alkoxy-C₁₋₃ alkylamino, C₁₋₃ alkoxy-C₁₋₃ alkyl-N(C₁₋₃ alkyl), C₁₋₆ alkylaminosulfonyl, di(C₁₋₆ alkyl)aminosulfonyl, C₁₋₄ alkylsulfonyloxy, C₁₋₄ haloalkylsulfonyloxy, C₁₋₄ alkylsulfonylamino, C₁₋₄ alkylsulfonyl-N(C₁₋₄ alkyl), cyano, carbamoyl, C₁₋₄ alkoxycarbonyl, formyl, halogen, rhodano, amino, hydroxy-C₁₋₄ alkyl, C₁₋₄ alkoxy-C₁₋₄ alkyl, C₁₋₄ alkylthio-C₁₋₄ alkyl, C₁₋₄ alkylsulfinyl-C₁₋₄ alkyl, C₁₋₄ alkylsulfonyl-C₁₋₄ alkyl, cyano-C₁₋₄ alkyl, C₁₋₆ alkylcarbonyloxy-C₁₋₄ alkyl, C₁₋₄ alkoxycarbonyl-C₁₋₄ alkyl, C₁₋₄ alkoxycarbonyloxy-C₁₋₄ alkyl, rhodano-C₁₋₄ alkyl, phenyl-C₁₋₄ alkyl, phenoxy-C₁₋₄ alkyl, benzyloxy-C₁₋₄ alkyl, benzoyloxy-C₁₋₄ alkyl, (2-oxiranyl)-C₁₋₄ alkyl, C₁₋₄ alkylamino-C₁₋₄ alkyl, di(C₁₋₄ alkyl)amino-C₁₋₄ alkyl, C₁₋₁₂ alkylthiocarbonyl-C₁₋₄ alkyl or formyl-C₁₋₄ alkyl, or benzylthio, benzylsulfinyl, benzylsulfonyl, benzyloxy, benzyl, phenyl, phenoxy, phenylthio, phenylsulfinyl or phenylsulfonyl, wherein the phenyl-containing groups may themselves be substituted by C₁₋₃ alkyl, C₁₋₃ haloalkyl, C₁₋₃ alkoxy, C₁₋₃ haloalkoxy, halogen, cyano or by nitro; or

R²⁴ is a three- to ten-membered monocyclic or fused bicyclic ring system, which may be aromatic, saturated or partially saturated and may contain from 1 to 4 hetero atoms selected from nitrogen, oxygen and sulfur, wherein the ring system is bonded to the group W-containing aromatic ring by way of a C₁₋₄ alkylene, C₂₋₄ alkenylene or C₂₋₄ alkynylene bridge which may be interrupted by oxygen, —N(C₁₋₄ alkyl)-, sulfur, sulfinyl, sulfonyl or by carbonyl, and each ring system may contain no more than two oxygen atoms and no more than two sulfur atoms, and the ring system may itself be mono-, di- or tri-substituted by C₁₋₆ alkyl, C₁₋₆ haloalkyl, C₂₋₆ alkenyl, C₂₋₆ haloalkenyl, C₂₋₆ alkynyl, C₂₋₆ haloalkynyl, C₁₋₆ alkoxy, C₁₋₆ haloalkoxy, C₃₋₆ alkenyloxy, C₃₋₆ alkynyloxy, hydroxy, mercapto, C₁₋₆ alkylthio, C₁₋₆ haloalkylthio, C₃₋₆ alkenylthio, C₃₋₆ haloalkenylthio, C₃₋₆ alkynylthio, C₁₋₄ alkoxy-C₁₋₃ alkylthio, C₁₋₄ alkylcarbonyl-C₁₋₃ alkylthio, C₁₋₄ alkoxycarbonyl-C₁₋₃ alkylthio, cyano-C₁₋₃ -alkylthio, C₁₋₆ alkylsulfinyl, C₁₋₆ haloalkylsulfinyl, C₁₋₆ alkylsulfonyl, C₁₋₆ haloalkylsulfonyl, aminosulfonyl, C₁₋₄ alkylaminosulfonyl, di(C₁₋₄ alkyl)aminosulfonyl, di(C₁₋₄ alkyl)amino, halogen, cyano, nitro, phenyl and/or by benzylthio, wherein phenyl and benzylthio may themselves be substituted on the phenyl ring by C₁₋₃ alkyl, C₁₋₃ haloalkyl, C₁₋₃ alkoxy, C₁₋₃ haloalkoxy, halogen, cyano or by nitro, and wherein substituents on the nitrogen in the heterocyclic ring are other than halogen; or

R²⁴ is the group —D₁—D₃ or the group —D₂—D₁—D₃;

R²⁵ is hydrogen, C₁₋₆ alkyl, C₁₋₆ haloalkyl, C₂₋₆ alkenyl, C₂₋₆ haloalkenyl, C₂₋₆ alkynyl, C₂₋₆ haloalkynyl, C₃₋₆ cycloalkyl, C₁₋₆ alkoxy, C₁₋₆ haloalkoxy, C₁₋₆ alkylthio, C₁₋₆ alkylsulfinyl, C₁₋₆ alkylsulfonyl, C₁₋₆ haloalkylthio, C₁₋₆ haloalkylsulfinyl, C₁₋₆ haloalkylsulfonyl, C₁₋₆ alkylsulfonyloxy, hydroxy, mercapto, amino, C₁₋₆ alkylamino, di(C₁₋₆ alkyl)amino, C₁₋₄ alkylsulfonylamino, C₁₋₄ alkylsulfonyl-N(C₁₋₄ alkyl)-, C₁₋₆ alkylaminosulfonyl, di(C₁₋₆ alkyl)aminosulfonyl, cyano, halogen, C₁₋₄ alkoxy-C₁₋₄ alkyl, C₁₋₄ alkylthio-C₁₋₄ alkyl, C₁₋₄ alkylsulfinyl-C₁₋₄ alkyl, C₁₋₄ alkylsulfonyl-C₁₋₄ alkyl, triazolyl, phenyl, phenylthio, phenylsulfinyl, phenylsulfonyl or phenoxy, wherein the phenyl-containing groups may be substituted by C₁₋₃ alkyl, C₁₋₃ haloalkyl, C₁₋₃ alkoxy, C₁₋₃ haloalkoxy, halogen, cyano or by nitro;

R²⁶ is hydrogen, C₁₋₆ alkyl, hydroxy, C₁₋₆ alkoxy, C₁₋₆ haloalkoxy, C₃₋₆ alkenyloxy, C₃₋₆haloalkenyloxy, C₃₋₆ alkynyloxy, C₁₋₄ alkylcarbonyloxy, C₁₋₄ alkylsulfonyloxy, phenylsulfonyloxy, C₁₋₄ alkylthio, C₁₋₄ alkylsulfinyl, C₁₋₄ alkylsulfonyl, C₁₋₄ alkylamino, di(C₁₋₄ alkyl)amino, C₁₋₄ alkoxycarbonyl, C₁₋₄ haloalkyl, formyl, cyano, halogen, phenyl or phenoxy, wherein the phenyl-containing groups may themselves be substituted by C₁₋₃ alkyl, C₁₋₃ haloalkyl, C₁₋₃ alkoxy, C₁₋₃ haloalkoxy, halogen, cyano or by nitro; or

R²⁶ is a three- to ten-membered monocyclic or, together with R²⁵ or R²⁷, fused bicyclic ring system, which may contain from 1 to 4 hetero atoms selected from nitrogen, oxygen and sulfur, wherein, when the ring system is not fused, it is bonded to the W-containing aromatic ring, either directly or by way of a C₁₋₄ alkylene, C₂₋₄ alkenylene or C₂₋₄ alkynylene bridge which may be interrupted by oxygen, —N(C₁₋₄ alkyl)-, sulfur, sulfinyl, sulfonyl or by carbonyl, and the ring system may contain no more than two oxygen atoms and no more than two sulfur atoms, and the ring system may itself be mono-, di- or tri-substituted by C₁₋₆ alkyl, C₁₋₆ haloalkyl, C₂₋₆ alkenyl, C₂₋₆ haloalkenyl, C₂₋₆ alkynyl, C₂₋₆ haloalkynyl, C₁₋₆ alkoxy, C₁₋₆ haloalkoxy, C₃₋₆ alkenyloxy, C₃₋₆ alkynyloxy, C₁₋₆ alkylthio, C₁₋₆ haloalkylthio, C₃₋₆ alkenylthio, C₃₋₆ haloalkenylthio, C₃₋₆ alkynylthio, C₁₋₄ alkoxy-C₁₋₂ alkylthio, C₁₋₄ alkylcarbonyl-C₁₋₂ alkylthio, C₁₋₄ alkoxycarbonyl-C₁₋₂ alkylthio, cyano-C₁₋₄ alkylthio, C₁₋₆ alkylsulfinyl, C₁₋₆ haloalkylsulfinyl, C₁₋₆ alkylsulfonyl, C₁₋₆ haloalkylsulfonyl, aminosulfonyl, C₁₋₄ alkylaminosulfonyl, di(C₁₋₄ alkyl)aminosulfonyl, amino, C₁₋₄ alkyl amino, di(C₁₋₄ alkyl)amino, halogen, cyano, nitro, phenyl and by/or benzylthio, wherein phenyl and benzylthio may themselves be substituted on the phenyl ring by C₁₋₃ alkyl, C₁₋₃ haloalkyl, C₁₋₃ alkoxy, C₁₋₃ haloalkoxy, halogen, cyano or by nitro, and wherein substituents on the nitrogen in the heterocyclic ring are other than halogen;

R²⁷ is hydrogen, C₁₋₆ alkyl, C₁₋₆ haloalkyl, C₂₋₆ alkenyl, C₂₋₆ haloalkenyl, C₂₋₆ alkynyl, C₂₋₆ haloalkynyl, C₃₋₆ cycloalkyl, C₁₋₆ alkoxy, C₁₋₆ haloalkoxy, C₁₋₆ alkylthio, C₁₋₆ alkylsulfinyl, C₁₋₆ alkylsulfonyl, C₁₋₆ haloalkylthio, C₁₋₆ haloalkylsulfinyl, C₁₋₆ haloalkylsulfonyl, amino, C₁₋₆ alkylamino, di(C₁₋₆ alkyl)amino, C₁₋₄ alkylsulfonyl-N(C₁₋₄ alkyl)-, C₁₋₆ alkylaminosulfonyl, di(C₁₋₆ alkyl)aminosulfonyl, cyano, halogen, C₁₋₄ alkoxy-C₁₋₄ alkyl, C₁₋₄ alkylthio-C₁₋₄ alkyl, C₁₋₄ alkylsulfinyl-C₁₋₄ alkyl , C₁₋₄ alkylsulfonyl-C₁₋₄ alkyl, phenyl, phenylthio, phenylsulfinyl, phenylsulfonyl or phenoxy, wherein phenyl groups may themselves be substituted by C₁₋₃ alkyl, C₁₋₃ haloalkyl, C₁₋₃ alkoxy, C₁₋₃ haloalkoxy, halogen, cyano or by nitro;

R²⁸ and R²⁹ are each independently hydrogen, C₁₋₄ alkyl, phenyl, C₁₋₄ alkoxy, halogen, hydroxy, cyano, hydroxycarbonyl or C₁₋₄ alkoxycarbonyl;

R³⁰ is C₁₋₄ alkyl, alkoxycarbonyl or C₁₋₄ alkylcarbonyl;

R³¹ is hydrogen, C₁₋₆ alkyl, hydroxy, C₁₋₆ alkoxy, C₁₋₆ haloalkoxy, C₃₋₆ alkenyloxy, C₃₋₆ haloalkenyloxy, C₃₋₆ alkynyloxy, C₁₋₄ alkylcarbonyloxy, C₁₋₄ alkylsulfonyloxy, phenylsulfonyloxy, C₁₋₆ alkylthio, C₁₋₆ alkylsulfinyl, C₁₋₆ alkylsulfonyl, C₁₋₆ alkylamino, di(C₁₋₆ alkyl)amino, C₁₋₃ alkoxy-C₁₋₃ alkylamino, C₁₋₃ alkoxy-C₁₋₃ alkyl-N(C₁₋₃ alkyl)-, C₁₋₄ alkoxycarbonyl, C₁₋₆ haloalkyl, formyl, cyano, halogen, phenyl or phenoxy, wherein the phenyl-containing groups may themselves be substituted by C₁₋₃ alkyl, C₁₋₃ haloalkyl, C₁₋₃ alkoxy, C₁₋₃ haloalkoxy, halogen, cyano or by nitro;

or R³¹ is a three- to ten-membered monocyclic or, together with R²⁴ or R²⁵ fused bicyclic ring system, which may be interrupted once or up to three times by heterocyclic substituents selected from oxygen, sulfur, S(O), SO₂, N(R³²), carbonyl and C(═NOR³³), and wherein, when the ring system is not fused, it is bonded to the carbon atom of the substituent W, either directly or by way of a C₁₋₄ alkylene, C₂₋₄ alkenylene or C₂₋₄ alkynylene bridge which may be interrupted by oxygen, —N(C₁₋₄ alkyl)-, sulfur, sulfinyl or by sulfonyl, and the ring system may contain no more than two oxygen atoms and no more than two sulfur atoms, and the ring system may itself be mono-, di- or tri-substituted by C₁₋₆ alkyl, C₁₋₆ haloalkyl, C₂₋₆ alkenyl, C₂₋₆ haloalkenyl, C₂₋₆ alkynyl, C₂₋₆ haloalkynyl, C₁₋₆ alkoxy, C₁₋₆ haloalkoxy, C₃₋₆ alkenyloxy, C₃₋₆ alkynyloxy, C₁₋₆ alkylthio, C₁₋₆ haloalkylthio, C₃₋₆ alkenylthio, C₃₋₆ haloalkenylthio, C₃₋₆ alkynylthio, C₁₋₄ alkoxy-C₁₋₂ alkylthio, C₁₋₄ alkylcarbonyl-C₁₋₂-alkylthio, C₁₋₄ alkoxycarbonyl-C₁₋₂ alkylthio, cyano-C₁₋₄ alkylthio, C₁₋₆ alkylsulfinyl, C₁₋₆ haloalkylsulfinyl, C₁₋₆ alkylsulfonyl, C₁₋₆ haloalkylsulfonyl, aminosulfonyl, C₁₋₄ alkylaminosulfonyl, di(C₁₋₄ alkyl)aminosulfonyl, di(C₁₋₄ alkyl)amino, halogen, cyano, nitro, phenyl, benzyloxy and/or by benzylthio, and wherein the phenyl-containing groups may themselves be substituted on the phenyl ring by C₁₋₃ alkyl, C₁₋₃ haloalkyl, C₁₋₃ alkoxy, C₁₋₃ haloalkoxy, halogen, cyano or by nitro, and wherein substituents on the nitrogen in the heterocyclic ring are other than halogen;

or R³¹ is the group —D₄—D₆ or the group —D₅—D₄—D₆;

R³² is hydrogen, C₁₋₄ alkyl, C₁₋₄ alkylthio-C₁₋₄ alkylcarbonyl, C₁₋₄ alkylsulfinyl-C₁₋₄-alkylcarbonyl, C₁₋₄ alkylsulfonyl-C₁₋₄ alkylcarbonyl, C₁₋₄ alkoxycarbonyl, C₁₋₄ alkylcarbonyl, phenylcarbonyl or phenyl, wherein the phenyl groups may themselves be substituted by C₁₋₄ alkyl, C₁₋₄ haloalkyl, C₁₋₄alkoxy, C₁₋₄ haloalkoxy, C₁₋₄ alkylcarbonyl, C₁₋₄ alkoxycarbonyl, C₁₋₄ alkylamino, di(C₁₋₄ alkyl)amino, C₁₋₄ alkylthio, C₁₋₄ alkylsulfinyl, C₁₋₄ alkyl-SO₂, C₁₋₄ alkyl-S(O)₂O, C₁₋₄ haloalkylthio, C₁₋₄ haloalkylsulfinyl, C₁₋₄ haloalkyl-SO₂, C₁₋₄ haloalkyl-S(O)₂O, C₁₋₄ alkyl-S(O)₂NH, C₁₋₄ alkyl-S(O)₂N(C₁₋₄alkyl)-, halogen, nitro or by cyano;

R³³ is hydrogen, C₁₋₄ alkyl, C₃₋₄ alkenyl, C₃₋₄ alkynyl or benzyl;

h is 0 or 1;

D₁ is oxygen, —O(CO)—, —(CO)O—, —O(CO)O—, —N(C₁₋₄ alkyl)—O—, —O—N(C₁₋₄ alkyl)-, thio, sulfinyl, sulfonyl, —SO₂N(C₁₋₄alkyl)-, —N(C₁₋₄ alkyl)SO₂—, —N(C₁₋₂ alkoxy-C₁₋₂ alkyl)SO₂— or —N(C₁₋₄ alkyl)-;

D₂ is a C₁₋₆ alkylene, C₃₋₆ alkenylene or C₃₋₆ alkynylene chain, which may be mono- or poly-substituted by halogen or by D₇, the unsaturated bonds of the chain not being bonded directly to the substituent D₁;

D₃ and D₆ are each independently of the other a C₁₋₈ alkyl, C₃₋₆ alkenyl or C₃₋₆ alkynyl group, which may be mono- or poly-substituted by halogen, hydroxy, amino, formyl, nitro, cyano, mercapto, carbamoyl, C₁₋₆ alkoxy, C₁₋₆ alkoxycarbonyl, C₂₋₆ alkenyl, C₂₋₆ haloalkenyl, C₂₋₆ alkynyl, C₂₋₆ haloalkynyl, C₃₋₆ cycloalkyl, halo-substituted C₃₋₆ cycloalkyl, C₃₋₆ alkenyloxy, C₃₋₆ alkynyloxy, C₁₋₆haloalkoxy, C₃₋₆ haloalkenyloxy, cyano-C₁₋₆ alkoxy, C₁₋₆ alkoxy-C₁₋₆ alkoxy, C₁₋₆ alkoxy-C₁₋₆ alkoxy-C₁₋₆ alkoxy, C₁₋₆ alkylthio-C₁₋₆ alkoxy, C₁₋₆ alkylsulfinyl-C₁₋₆ alkoxy, C₁₋₆ alkylsulfonyl-C₁₋₆ alkoxy, C₁₋₆ alkoxycarbonyl-C₁₋₆ alkoxy, C₁₋₆ alkoxycarbonyl, C₁₋₆ alkylcarbonyl, C-6 alkylthio, C₁₋₄ alkylsulfinyl, C₁₋₆ alkylsulfonyl, C₁₋₆ haloalkylthio, C₁₋₆ haloalkylsulfinyl, C₁₋₆ haloalkylsulfonyl, oxiranyl which may itself be substituted by C₁₋₆ alkyl, (3-oxetanyl)-oxy which may itself be substituted by C₁₋₆ alkyl, benzyloxy, benzylthio, benzylsulfinyl, benzylsulfonyl, C₁₋₆ alkylamino, di(C₁₋₆ alkyl)amino, C₁₋₄ alkyl-S(O)₂O, di(C₁₋₄ alkyl)aminosulfonyl, rhodano, phenyl, phenoxy, phenylthio, phenylsulfinyl or by phenylsulfonyl, and wherein the phenyl- or benzyl-containing groups may themselves be substituted by one or more C₁₋₆ alkyl, C₁₋₆ haloalkyl, C₁₋₆ alkoxy, C₁₋₆ haloalkoxy, halogen, cyano, hydroxy or nitro groups; or

D₃ and D₆ are each independently of the other phenyl, which may be mono- or poly-substituted by C₁₋₆ alkyl, C₁₋₆ haloalkyl, C₁₋₆ alkoxy, C₁₋₆ haloalkoxy, halogen, cyano, hydroxy or by nitro; or

D₃ and D₆ are each independently of the other C₃₋₆ cycloalkyl, C₁₋₆ alkoxy- or C₁₋₆ alkyl-substituted C₃₋₆ cycloalkyl, 3-oxetanyl or C₁₋₆ alkyl-substituted 3-oxetanyl; or

D₃ and D₆ are each independently of the other a three- to ten-membered monocyclic or fused bicyclic ring system, which may be aromatic, saturated or partially saturated and may contain from 1 to 4 hetero atoms selected from nitrogen, oxygen and sulfur, wherein the ring system is bonded to the substituent D₁ or D₄ directly or by way of a C₁₋₄ alkylene, C₂₋₄ alkenylene, C₂₋₄ alkynylene, —N(C₁₋₄ alkyl)—C₁₋₄ alkylene, —S(O)—C₁₋₄ alkylene or —SO₂—C₁₋₄ alkylene group, and each ring system may contain no more than two oxygen atoms and no more than two sulfur atoms, and the ring system may itself be mono-, di- or tri-substituted by C₁₋₆ alkyl, C₁₋₆ haloalkyl, C₂₋₆ alkenyl, C₂₋₆ haloalkenyl, C₂₋₆ allynyl, C₂₋₆ haloalkynyl, C₁₋₆ alkoxy, hydroxy, C₁₋₆-haloalkoxy, C₃₋₆ alkenyloxy, C₃₋₆ alkyynyloxy, mercapto, C₁₋₆ alkylthio, C₁₋₆ haloalkylthio, C₃₋₆ alkenylthio, C₃₋₆ haloalkenylthio, C₃₋₆ alkynylthio, C₁₋₃ alkoxy-C₁₋₃ alkylthio, C₁₋₄ alkylcarbonyl-C₁₋₂ alkylthio, C₁₋₄ alkoxycarbonyl-C₁₋₂ alkylthio, cyano-C₁₋₃ alkylthio, C₁₋₆ alkylsulfinyl, C₁₋₆ haloalkylsulfinyl, C₁₋₆ alkylsulfonyl, C₁₋₆ haloalkylsulfonyl, aminosulfonyl, C₁₋₂alkylaminosulfonyl, di(C₁₋₂ alkyl)aminosulfonyl, di(C₁₋₄alkyl)amino, C₁₋₆ carbonylamino, halogen, cyano, nitro, phenyl, benzyloxy and/or by benzylthio, wherein the phenyl groups may themselves be substituted on the phenyl ring by C₁₋₃ alkyl, C₁₋₃ haloalkyl, C₁₋₃ alkoxy, C₁₋₃ haloalkoxy, halogen, cyano or by nitro, and wherein the substituents on the nitrogen in the heterocyclic ring are other than halogen;

D₄ is oxygen, —O(CO), —(CO)O—, —O(CO)O—, —N(C₁₋₄ alkyl)-O—, —O—N(C₁₋₄ alkyl)-, sulfur, sulfinyl, sulfonyl, —SO₂N(C₁₋₄ alkyl)-, —N(C₁₋₄ alkyl)SO₂—, —N(C₁₋₂ alkoxy-C₁₋₂ alkyl)SO₂— or —N(C₁₋₄ alkyl)-;

D₅ is a C₁₋₆ alkylene, C₃₋₆ alkenylene or C₃₋₆ alkynylene chain, which may be mono- or poly-substituted by halogen or by D₈, the unsaturated bonds of the chain not being bonded directly to the substituent D₄;

D₇ and D₈ are each independently of the other hydroxy, C₁₋₆ alkoxy, (C₃₋₆ cycloalkyl)oxy, C₁₋₆ alkoxy-C₁₋₆ alkoxy, C₁₋₆ alkoxy-C₁₋₆ alkoxy-C₁₋₆ alkoxy or C₁₋₆ alkylsulfonyloxy;

and agronomically acceptable salts/N-oxides/isomers/enantiomers of such compounds.

Alternatively, the triketone may be present in an enolic form and is a compound of formula (ID)

wherein R³⁴ and R³⁵ are both hydrogen or together form an ethylene bridge.

The compound of formula (ID) wherein both R³⁴ and R³⁵ are hydrogen is hereinafter referred to as compound (IDa), and the compound of formula (I) wherein R³⁴ and R³⁵ together form an ethylene bridge is hereinafter referred to as compound (IDb).

Suitably, the pyrazole is a compound of formula (IE)

wherein R³⁶, R³⁷, R³⁸ and R³⁹ are each independently selected from hydrogen, halo or C₁₋₄ alkyl;

X is —SO₂— or CH₂CO—;

j is 2 or 3; and

k is zero or 1.

Suitably R³⁶, R³⁷, R³⁸ and R³⁹ are each independently hydrogen, chloro or methyl.

Preferred compounds of formula (IE) include 2-[[4-(2,4-dichloro-3-methylbenzoyl)-1,3-dimethyl-1H-pyrazol-5-yl]oxy]-1-(4-methylphenyl)ethanone (benzofenap), (2,4-dichlorophenyl)[1,3-dimethyl-5 -[[(4-methylphenyl)sulfonyl]oxy]-1H-pyrazol-4-yl]methanone (pyrazolynate) and 2-[[4-(2,4-dichlorobenzoyl)-1,3-dimethyl-1H-pyrazol-5-yl]oxy]-1-phenylethanone (pyrazoxyfen).

Benzobicyclon is a compound of formula (IF)

Ketospiradox is a compound of formula (IG)

Agriculturally acceptable salts for use in the present invention include salts the cations or anions of which are known and accepted in the art for the formation of salts for agricultural or horticultural use. Useful salts for practice of the invention may be formed from compounds of formulae (IA) to (IG) using amines, alkali metal bases, alkaline earth metal bases, quaternary ammonium bases, and metal chelates. Also included are metal chelates of compounds of formulae (IA) to (IG), particularly compounds of formula (IB), including salts of di- and trivalent transition metal ions such as Cu⁺², Zn⁺², Co⁺², Ni⁺², Ca⁺², Al⁺³, Ti⁺³, Fe⁺³, Fe⁺³, Ba⁺², Cs⁺², and also [CH₃(CH₂)₇]3N.

Examples of suitable amines for ammonium salt formation that come into consideration are ammonia as well as primary, secondary and tertiary C₁₋₁₈ alkylamines, C₁₋₄ hydroxyalkylamines and C₂₋₄ alkoxyalkylamines, for example methylamine, ethylamine, n-propylamine, isopropylamine, the four butylamine isomers, n-amylamine, isoamylamine, hexylamine, heptylamine, octylamine, nonylamine, decylamine, pentadecylamine, hexadecylamine, heptadecylarnine, octadecylamine, methyl-ethylamine, methyl-isopropylamine, methyl-hexylamine, methyl-nonylamine, methyl-pentadecylamine, methyl-octadecylamine, ethyl-butylamine, ethyl-heptylamine, ethyl-octylamine, hexyl-heptylamine, hexyl-octylamine, dimethylamine, diethylamine, di-n-propylamine, diisopropylamine, di-n-butylamine, di-n-amylamine, diisoamylamine, dihexylamine, diheptylamine, dioctylamine, ethanolamine, n-propanolamine, isopropanolamine, N,N-diethanolamine, N-ethylpropanolamine, N-butylethanolamine, allylamine, n-butenyl-2-amine, n-pentenyl-2-amine, 2,3-dimethylbutenyl-2-amine, dibutenyl-2-amine, n-hexenyl-2-amine, propylenediamine, trimethylamine, triethylamine, tri-n-propylamine, triisopropylamine, tri-n-butylamine, triisobutylamine, tri-sec-butylamine, tri-n-amylamine, methoxyethylamine and ethoxyethylamine; heterocyclic amines, for example pyridine, quinoline, isoquinoline, morpholine, piperidine, pyrrolidine, indoline, quinuclidine and azepine; primary aryl amines for example anilines, methoxyanilines, ethoxyanilines, o-, m- and p-toluidines, phenylenediamines, benzidines, naphthylamines and o-, m- and p-chloroanilines; but especially triethylamine, isopropylamine and diisopropylamine.

The selection of a particular metal ion to form a metal chelate compound of a compound of formulae (IA) to (IG); particularly (IB), will depend upon the dione compound to be chelated. For example, metal chelates of compounds of formula (IB) and their preparation are described, inter alia, in PCT Publication No. WO97/27748. Metal chelates of compounds of formula (IB) have the general structure:

wherein R⁸, R⁹, R¹⁰, d and e are as hereinbefore defined, and

wherein M represents a di- or trivalent metal ion such as Cu⁺², Zn⁺², Co⁺², Ni⁺², Ca⁺², Al⁺³, Ti⁺³, Fe⁺², Fe⁺³, Ba⁺², Cs⁺² and also [CH₃(CH₂)₇]₃N. The preferred metal ions are divalent transition metal ions, particularly Cu⁺², Co⁺², Ni⁺², and Zn⁺²; with Cu⁺² being especially preferred. Any appropriate salt which would be a source of a di- or trivalent metal ion may be used to form the metal chelate of the dione compound in accordance with this invention. Particularly suitable salts include: chlorides, sulphates, nitrates, carbonates, phosphates and acetates.

Insecticides suitable for use in the present invention include Abamectin, Acephate, Acetamiprid, Acrinathrin, Acrylonitrile, Alanycarb, Aldicarb, Aldoxycarb, Aldrin, Allethrin (1R-isomers), Allyxycarb, Alpha-cypermethrin, Phosphine (Aluminium Phosphide), Amidithion, Aminocarb, Amiton, Amitraz, Anabasine, Athidathion, Azadirachtin, Azamethiphos, Azinphos-ethyl, Azinphos-methyl, Azothoate, Bacillus sphaericus, Bacillus thuringiensis, Bacillus thuringiensis delta endotoxins, Barium polysulfide, Bendiocarb, Benfuracarb, Bensultap, Benzoximate, Beta-cyfluthrin, Beta-cypermedirin, Bifenthrin, Bioallethrin, Bioallethrin S-cyclopentenyl isomer, Biopemiethrin, Bioresmethrin, Bistrifluron, Borax, Bromfenvinfos, Bromophos, Bromophos-ethyl, Bufencarb, Buprofezin, Butacarb, Butathiofos, Butocarboxim, Butonate, Butoxycarboxim, Cadusafos, Hydrogen cyanide, Calcium polysulfide, Camphechlor, Carbanolate, Carbaryl, Carbofuran, Carbon disulfide, Carbon tetrachloride, Carbophenothion, Carbosulfan, Cartap, Chlorbicyclen, Chlordane, Chlordecone, Chlordimeform, Chlorethoxyfos, Chlorfenapyr, Chlorfenvinphos, Chlorfluazuron, Chlormephos, Chloropicrin, Chlorphoxim, Chlorprazophos, Chlorpyrifos, Chlorpyrifos-methyl, Chlorthiophos, Chromafenozide, Clothianidin, Coumaphos, Coumithoate, Crotoxyphos, Crufomate, Cryolite, Cyanofenphos, Cyanophos, Cyanthoate, Cycloprothrin, Cyfluthrin, Cyhalothrin, Cypermethrin, Alpha-cypermethrin, Beta-Cypermethrin, Theta-cypermethrin, Zeta-cypermethrin, Cyphenothrin, Cyromazine, Dazomet, Bromo-DDT, DDT, pp′-DDT, Decarbofuran, Deltamethrin, Demephion, Demephion-O, Demephion-S, Demeton, Demeton-O, Demeton-S, Demeton-methyl, Demeton-O-methyl, Demeton-S-methyl, Demeton-S-methylsulphon, Diafenthiuron, Dialifos, Diazinon, Dicapthon, Dichlofenthion, Dichlorvos, Dicrotophos, Dicyclanil, Dieldrin, Diflubenzuron, Dirnefox, Dirnethoate, Dimethrin, Dimethylvinphos, Dimetilan, Dinex, Dinotefuran, Diofenolan, Dioxabenzofos, Dioxacarb, Dioxathion, Disulfoton, Dithicrofos, DNOC, Emamectin, EMPC, Empenthrin, Endosulfan, Endothion, EPN, Epofenonane, Esfenvalerate, Ethiofencarb, Ethion, Ethoate-methyl, Ethoprophos, Ethylene dibromide, Ethylene dichloride, Etofenprox, Etrimfos, Famphur, Fenchlorphos, Fenethacarb, Fenfluthrin, Fenitrothion, Fenobucarb, Fenoxycarb, Fenpirithrin, Fenpropathrin, Fensulfothion, Fenthion, Fenvalerate, Fipronil, Flonicamid, Flucofuron, Flucycloxuron, Flucythrinate, Flucythrinate, Flucythrinate, Flufenprox, Flumethrin, Fluvalinate, Fonofos, Formetanate, Formothion, Fosmethilan, Fospirate, Fosthiazate, Fosthietan, Furathiocarb, Furethrin, gamma-HCH, GY-81, Halofenozide, Heptachlor, Heptenophos, Hexaflumuron, Hydramethylnon, Hydrogen cyanide, Hydroprene, Imidacloprid, Imiprothrin, Indoxacarb, IPSP, Isazofos, Isobenzan, Isodrin, Isofenphos, Isoprocarb, Isopropyl O-(methoxyaminothiophosphoryl)salicylat, Isothioate, Isoxathion, Jodfenphos, Kelevan, Kinoprene, Lambda-cyhalothrin, Lirimfos, Lufenuron, Lythidathion, Phosphine, Malathion, Mazidox, Mecarbam, Mecarphon, Menazon, Mephosfolan, Mercurous chloride, Mesulfenfos, Metam, Methacrifos, Methamidophos, Methidathion, Methiocarb, Methocrotophos, Methomyl, Methoprene, Methothrin, Methoxychlor, Methoxyfenozide, Methyl bromide, Methyl isothiocyanate, Metolcarb, Metoxadiazone, Mevinphos, Mexacarbate, Milbemectin, Mipafox, Mirex, Monocrotophos, Morphothion, Naled, Nicotine, Nifluridide, Nitenpyram, Nithiazine, Nitrilacarb, Novaluron, Ölsäure, Omethoate, Oxamyl, Oxydemeton-methyl, Oxydeprofos, Oxydisulfoton, Parathion, Parathion-methyl, Pentachlorophenol, Permethnn, Petroleum Öl, Phenkapton, Phenothrin, Phenthoate, Phorate, Phosalone, Phosfolan, Phosmet, Phosnichlor, Phosphamidon, Phoxim, Phoxim-methyl, Pirimetaphos, Pirirnicarb, Pirimiphos-ethyl, Pirimiphos-methyl, Prallethirin, Primidophos, Profenofos, Promacyl, Promecarb, Propaphos, Propetamphos, Propoxur, Prothiofos, Prothoate, Pymetrozine, Pyraclofos, Pyrazophos, Pyresmethrin, Pyreibrins, Pyridaben, Pyridaphenthion, Pyrimidifen, Pyrimitate, Pyriproxyfen, Quinalphos, Quinalphos-methyl, Quinothion, Resmethrin, Rotenone, RU 15525, Sabadilla, Schradan, Silafluofen, Sodium fluoride, Sodium hexafluorosilicate, Pentachlorophenol, Sophamide, Spinosad, Sulcofuron, Sulfluramid, Sulfotep, Sulfuryl fluoride, Sulprofos, Tau-fluvalinate, Tazimcarb, TDE, Tebufenozide, Tebupirimfos, Teflubenzuron, Tefluthrin, Temephos, TEPP, Terallethrin, Terbufos, Tetrachlorvinphos, Tetramethrin, Tetramethrin [(1R)-isomers], Thiacloprid, Thiamethoxam, Thicrofos, Thiocarboxime, Thiocyclam, Thiodicarb, Thiofanox, Thiometon, Thiosultap-sodium, Tolfenpyrad, Tralomethrin, Transfluthrin, Transpermnethrin, Triazamate, Triazofos, Trichlorfon, Trichloronat, Tridec-4-enyl acetate, Trifenofos, Triflumuron, Trimethacarb, Triprene, Vamidothion, XMC, Xylylcarb, Spirodiclofen, Acetoprole, Fluacrypyrim, Pyridalyl, Noviflumuron, Flufenerim, Amidoflumet, Ethiprole, Acequinocyl, Etoxazole, Bifenazate, Spiromesifen and ZXI 8901. The above insecticides are described in the Pesticide Manual, 12^(th) ed., British Crop Protection Council 2000.

In a preferred embodiment of the invention, the insecticide is not lambda-cyhalothrin when the HPPD-inhibiting herbicide is 2-(2′-nitro-4′-methylsulphonylbenzoyl)-1,3-cyclohexanedione (mesotrione).

Particularly preferred combinations of HPPD-inhibiting herbicide salt and insecticide include agrochemically acceptable salts of isoxaflutole, isoxachlortole, mesotrione, sulcotrione, Compound (IDa), Compound (IDb), benzofenap, pyrazolynate, pyrazoxyfen, Benzobicyclon or Ketospiradox with chlorpyrifos, chlorpyrifos-methyl, terbufos, tefluthrin or thiamethoxam.

In a further preferred embodiment of the invention, if the insecticide is terbufos or chlorpyrifos and the HPPD-inhibiting herbicide is 2-(2′-nitro-4′-methylsulphonylbenzoyl)-1,3-cyclohexanedione (mesotrione), the herbicide is suitably given post-emergence.

The pesticidally active combination according to the invention can be used against a large number of agronomically important weeds, such as Stellaria, Nasturtium, Agrostis, Digitaria, Avena, Setaria, Sinapis, Lolium, Solanum, Phaseolus, Echinochloa, Scirpus, Monochoria, Sagittaria, Bromus, Alopecurus, Sorghum halepense, Rottboellia, Cyperus, Abutilon, Sida, Xanthium, Amaranthus, Chenopodium, Ipomoea, Chrysanthemum, Galium, Viola and Veronica. The combination according to the invention is suitable for all methods of application conventionally used in agriculture, e.g. pre-emergence application, post-emergence application and seed dressing. Suitably, at least the HPPD-inhibiting herbicide is applied post-emergence, in particular when applied with a organophosphate or carbamate insecticide. The combination according to the invention is suitable especially for controlling weeds in crops of useful plants, such as cereals, rape, sugar beet, sugar cane, plantation crops, rice, maize and soybeans, and also for non-selective weed control. “Crops” are to be understood also to include those crops which have been made tolerant to herbicides or classes of herbicides as a result of conventional methods of breeding or genetic engineering. The components used in the combination of the invention can be applied in a variety of ways known to those skilled in the art, at various concentrations. The rate at which the herbicidal components are applied will depend upon the particular type of weed to be controlled, the degree of control required, and the timing and method of application. In general, the components can be applied at an application rate of between about 10 g a.i./hectare (g/ha) and about 7500 g a.i./ha, based on the total amount of active ingredient. An application rate of between about 50 g a.i/ha and 5000 g a.i./ha is preferred. Suitably, the HPPD-inhibiting herbicide salt is applied at a rate of 1-500 g a.i./ha, preferably 50-250 g a.i/ha; and the insecticide compound is applied at a rate of 5-2500 g a.i/ha, preferably 50-2000 g a.i./ha. In an especially preferred embodiment of this invention, the components are administered in relative amounts sufficient to provide an application rate of at least 2000 g a.i./ha, of which the HPPD-inhibiting herbicide salt provides at least 100 g/ha. Generally the mixing ratios (by weight) of HPPD and Insecticide compound are from 1:2000 to 2000:1; preferably 1:200 to 200:1.

The components used in the combination of the invention may be administered simultaneously or sequentially. If administered sequentially, the components may be administered in any order in a suitable timescale, for example the insecticide may be administered at planting and the HPPD-inhibiting herbicide salt administered post-emergent.

If the components are administered simultaneously, they may be administered separately or as a tank mix or as a pre-formulated mixture of all the components or as a pre-formulated mixture of some of the components tank mixed with the remaining components.

Therefore, a yet further aspect of the invention provides a pesticidally active pre-mix composition comprising a HPPD-inhibiting herbicide in the form of an agrochemically acceptable salt and an insecticide, provided that the HPPD-inhibiting herbicide is not a compound of formula (A)

wherein R^(a) is C₁₋₂ alkyl or chloro; R^(b) is hydrogen or C₁₋₄ alkyl; and R^(c) is C₁₋₄ alkyl.

A yet further aspect of the invention provides a pesticidally active combination or pre-mix composition comprising an HPPD inhibiting herbicide in the form of a salt and an insecticide as hereinbefore defined, in combination with one or more additional active ingredients. Such additional active ingredients may be other herbicides, fungicides, insecticides, or the like or safeners. In particular, the one or more additional active ingredients are herbicides and/or safeners. Examples of suitable additional herbicides and/or safeners for use in the present invention include atrazine, terbuthylazine, metolachlor, s-metolachlor, benoxacor, furilazole, dichlormid, flurazole acetochlor, p-dimethenamid, glyphosate, cloquintocet, fluxofenim, nicosulfuron, rimsulfuron, foramsulfuron, isoxadifene, prosulfiiron, primisulfirron, dicamba, trifloxysulfuron and the like. The pesticidal combination may contain, in addition to the main two components, an additional one, two, three, four or more components of the additional herbicides and/or safeners listed above.

The present invention is also directed to methods of controlling undesired plant growth in crops of useful plants, said method comprising the application of a pesticidally active amount of the combination or pre-mix composition of the invention to the cultivated plant or its locus. The method is especially useful where the cultivated plant is maize or a cereal.

The present invention will now be further described with reference to the following examples.

EXAMPLE 1

Field tests were conducted in the following way: Corn was seeded with standard sowing implements and grown under natural conditions until the 2-3 leaf stage of corn was reached. Corn with or without insecticide treatments applied at seeding was grown at the same time. At 2-3 leaf stage, the herbicides only or in combination with the insecticide, if the insecticide has not been applied at seeding, was applied broadcast foliar over the top. At highest phytotoxicity levels for corn at five days after application and at maximal weed control levels at 16 days after application, the trial was evaluated. The results are shown in the following Table I:

TABLE I Crop/Variety Sweet Corn Weed/ Corn ‘Jubilee Amaranthus ‘NK58D1 SS retroflexus Rating Data Type Weed Phytotox. Phytotox. Control Rating Unit Scale % % % Evaluation @ Days after All post applications with: last application COC @ 1% V/V + 5 5 16 Appln. UAN @ 2.5% V/V Rate Scale Min-Max Trt Timing Treatment/Product a.i. rate Unit 0-100 0-100 0-100 1 Check untreated 0 0 0 2 Post Mesotrione 105 GA/ 3.8 16.3 90 Ha 3 Post Mesotrione-Cu + s- 105(a.e) + 1053 + 52.5 GA/ 0 0 71.3 metolachlor + benoxacor Ha 4 Post Mesotrione-Cu + s- 105(a.e) + 1053 + 394 + 52.5 GA/ 2 1.3 95 metolachlor + atrazine + benoxacor Ha 5 Post Mesotrione-Cu 105(a.e.) GA/ 0 0 87.5 Ha 6 Post Mesotrione 210 GA/ 8.8 15 95 Ha 7 Post Mesotrione-Cu + s- 210(a.e) + 2105 + 105 GA/ 0 0 88.8 metolachlor + benoxacor Ha 8 Post Mesotrione-Cu + s- 210(a.e) + 2100 + 788 + 105 GA/ 6.3 1.3 95 metolachlor + atrazine + benoxacor Ha 9 Post Mesotrione-Cu 210(a.e) GA/ 0 0 95 Ha 10 In furrow Chlorpyrifos 11.2 GA/ 0 0 0 at seeding 100 Row M 11 In furrow Chlorpyrifos 11.2 GA/ 6.3 30 88.8 at seeding 100 Row M Followed Mesotrione 105 GA/ post Ha 12 In furrow Chlorpyrifos 11.2 GA/ 0 0 71.3 at seeding 100 Row M Followed Mesotrione-Cu + s- 105(a.e) + 1053 + 52.5 GA/ post metolachlor + benoxacor Ha 13 In furrow Chlorpyrifos 11.2 GA/ 1.3 1.3 95 at seeding 100 Row M Followed Mesotrione-Cu + s- 105(a.e) + 1053 + 394 + 52.5 GA/ post metolachlor + atrazine + benoxacor Ha 14 In furrow Chlorpyrifos 11.2 GA/ 0 0 82.5 at seeding 100 Row M Followed Mesotrione-Cu 105(a.e) GA/ post Ha 15 In furrow Chlorpyrifos 11.2 GA/ 15 28.8 95 at seeding 100 Row M Followed Mesotrione 210 GA/ post Ha 16 In furrow Chlorpyrifos 11.2 GA/ 1.3 0 93.8 at seeding 100 Row M Followed Mesotrione-Cu + s- 210(a.e) + 2105 + 105 GA/ post metolachlor + benoxacor Ha 17 In furrow Chlorpyrifos 11.2 GA/ 10 5 95 at seeding 100 Row M Followed Mesotrione-Cu + s- 210(a.e) + 2100 + 788 + 105 GA/ post metolachlor + atrazine + benoxacor Ha 18 In furrow Chlorpyrifos 11.2 GA/ 0.8 0 95 at seeding 100 Row M Followed Mesotrione-Cu 210(a.e) GA/ post Ha 19 In furrow Terbufos 11.2 GA/ 0 0 0 at seeding 100 Row M 20 In furrow Terbufos 11.2 GA/ 13.8 43.8 88.8 at seeding 100 Row M Followed Mesotrione 105 GA/ post Ha 21 In furrow Terbufos 11.2 GA/ 0 0 73.8 at seeding 100 Row M Followed Mesotrione-Cu + s- 105(a.e) + 1053 + 52.5 GA/ post metolachlor + benoxacor Ha 22 In furrow Terbufos 11.2 GA/ 2.5 0 93.8 at seeding 100 Row M Followed Mesotrione-Cu + s- 105(a.e) + 1053 + 394 + 52.5 GA/ post metolachlor + atrazine + benoxacor Ha 23 In furrow Terbufos 11.2 GA/ 0 0 83.8 at seeding 100 Row M Followed Mesotrione-Cu 105(a.e) GA/ post Ha 24 In furrow Terbufos 11.2 GA/ 26.3 43.8 95 at seeding 100 Row M Followed Mesotrione 210 GA/ post Ha 25 In furrow Terbufos 11.2 GA/ 2 0 76.3 at seeding 100 Row M Followed Mesotrione-Cu + s- 210(a.e) + 2105 + 105 GA/ post metolachlor + benoxacor Ha 26 In furrow Terbufos 11.2 GA/ 7.5 7.5 95 at seeding 100 Row M Followed Mesotrione-Cu + s- 210(a.e) + 2100 + 788 + 105 GA/ post metolachlor + atrazine + benoxacor Ha 27 In furrow Terbufos 11.2 GA/ 1.3 0 95 at seeding 100 Row M Followed Mesotrione-Cu 210(a.e) GA/ post Ha 28 Post Chlorpyrifos 1120 GA/ 0 0 0 Ha 29 Post tank Chlorpyrifos 1120 GA/ 4603 61.3 95 mix/foliar Ha Mesotrione 105 GA/ Ha 30 Post Chlorpyrifos 1120 GA/ 3.8 2.5 81.3 tankmix/ Ha foliar Mesotrione-Cu + s- 105(a.e) + 1053 + 52.5 GA/ metolachlor + benoxacor Ha 31 Post Chlorpyrifos 1120 GA/ 7 8.8 93.8 tankmix/ Ha foliar Mesotrione-Cu + s- 105(a.e) + 1050 + 394 + 52.5 GA/ metolachlor + atrazine + benoxacor Ha 32 Post Chlorpyrifos 1120 GA/ 5 8.8 91.3 tankmix/ Ha foliar Mesotrione-Cu 105(a.e) GA/ Ha 33 Post Chlorpyrifos 1120 GA/ 70 75 92.5 tankmix/ Ha foliar Mesotrione 210 GA/ Ha 34 Post Chlorpyrifos 1120 GA/ 8.8 3.3 93.8 tankmix/ Ha foliar Mesotrione-Cu + s- 210(a.e) + 2105 + 105 GA/ metolachlor + benoxacor Ha 35 Post Chlorpyrifos 1120 GA/ 20 10 95 tankmix/ Ha foliar Mesotrione-Cu + s- 210(a.e) + 2100 + 788 + 105 GA/ metolachlor + atrazine + benoxacor Ha 36 Post Chlorpyrifos 1120 GA/ 8.8 12.5 95 tankmix/ Ha foliar Mesotrione-Cu 210(a.e) GA/ Ha

EXAMPLE 2 Insecticide Pre-Plant Incorporated Followed by Post Application of the Herbicide

Prior to the planting of corn and weed, the substrate was filled into plastic pots and the different insecticides were applied with glasshouse spray equipment on bare soil at rates indicated in the results table. After the insecticide application, the substrate in the pots was mixed up in order to get an even distribution of the insecticide throughout the pot Crop and weed were planted following this procedure and grown under standard glasshouse conditions allowing optimal plant growth until 2-3 leaf stage. Then the herbicides were applied according to the rates indicated in the results table post emergent foliar over the top including standard adjuvants. The plants were visually evaluated on a scale of 0-100% wherein 0% indicated no phytotoxicity and 100% indicated full control or death. 0-15% indicates acceptable crop tolerance, 85-100% acceptable weed control. The evaluation was done at the time when maximal phytotoxicity or activity occurred. The results are shown in Table 2.

TABLE 2 Crop/Variety Weed/ Corn Solanum Cecilia Nigrum Rating Data Type Weed Phytotox. Control Rating Unit Scale % % Evaluation @ All post Days after last applications with: application COC @ 1% V/V + 20 43 Appln. UAN @ 2.5% V/V a.i. rate/ Scale Min-Max Trt Timing Treatment/Product GA/Ha 0-100 0-100 1 Post Mesotrione 400 0 0 200 0 100 100 5 98 2 Post Mesotrione-Cu 400 0 100 200 0 95 100 5 95 3 Pre-plant Chlorpyrifos-methyl 1000 incorporated Post Mesotrione 400 30 100 200 20 100 100 20 98 4 Pre-plant Chlorpyrifos-methyl 1000 incorporated Post Mesotrione-Cu 400 0 100 200 0 100 100 0 100 5 Pre-plant Terbufos 1000 incorporated Post Mesotrione 400 30 100 200 30 100 100 20 100 6 Pre-plant Terbufos 1000 incorporated Post Mesotrione-Cu 400 0 100 200 0 100 100 0 98 7 Pre-plant Tefluthrin 1000 incorporated Post Mesotrione 400 30 100 200 30 100 100 25 98 8 Pre-plant Tefluthrin 1000 incorporated Post Mesotrione-Cu 400 0 100 200 0 100 100 0 100 9 Pre-plant Thiamethoxam 1000 incorporated Post Mesotrione 400 30 100 200 30 95 100 20 100 10 Pre-plant Thiamethoxam 1000 incorporated Post Mesotrione-Cu 400 0 100 200 0 100 100 0 100 11 Post (ICb) 200 25 98 100 5 98 50 5 98 12 Post (ICb)-Cu 200 0 85 100 0 90 50 5 85 13 Pre-plant Chlorpyrifos-methyl 1000 incorporated Post (ICb) 200 40 100 100 30 100 50 20 100 14 Pre-plant Chlorpyrifos-methyl 1000 incorporated Post (ICb)-Cu 200 5 100 100 5 98 50 0 98 15 Pre-plant Terbufos 1000 incorporated Post (ICb) 200 40 100 100 40 100 50 20 95 16 Pre-plant Terbufos 1000 incorporated Post (ICb)-Cu 200 10 90 100 5 100 50 5 100 17 Pre-plant Tefluthrin 1000 incorporated Post (ICb) 200 40 100 100 40 100 50 20 100 18 Pre-plant Tefluthrin 1000 incorporated Post (ICb)-Cu 200 0 100 100 0 100 50 10 95 19 Pre-plant Thiamethoxam 1000 incorporated Post (ICb) 200 30 100 100 30 100 50 20 100 20 Pre-plant Thiamethoxam 1000 incorporated Post (ICb)-Cu 200 5 100 100 0 90 50 0 90

EXAMPLE 3 Insecticide and Herbicide Applied Tank-Mixed Post Emergent

Prior to the planting of corn and weed, the substrate was filled into plastic pots. Crop and weed were planted following this procedure and grown under standard glasshouse conditions allowing optimal plant growth until 2-3 leaf stage. Then the herbicides were applied according the rates indicated in the results table post emergent foliar over the top including standard adjuvants. The plants were visually evaluated on a scale of 0-100% wherein 0% indicated no phytotoxicity and 100% indicated full control or death. 0-15% indicates acceptable crop tolerance, 85-100% acceptable weed control. The evaluation was done at the time when maximal phytotoxicity or activity occurred. The results are shown in Table 3.

TABLE 3 Crop/Variety Corn Weed/ Sweet Solanum honeycomb Nigrum Rating Data Type Weed Phytotox. Control Rating Unit Scale % % Evaluation @ Days after last application 8 34 Appln. a.i. rate/ Scale Min-Max Trt Timing Treatment/Product GA/Ha 0-100 0-100 1 Post Mesotrione 400 20 100 200 20 100 100 10 100 2 Post Mesotrione-Cu 400 0 100 200 0 100 100 0 95 3 Post Chlorpyrifos-methyl 1000 Mesotrione 400 100 100 200 90 100 100 85 100 4 Post Chlorpyrifos-methyl 1000 Mesotrione-Cu 400 10 100 200 0 95 100 0 100 5 Post Terbufos 1000 Mesotrione 400 50 100 200 30 100 100 15 100 6 Post Terbufos 1000 Mesotrione-Cu 400 0 100 200 0 100 100 0 100 7 Post Tefluthrin 100 Mesotrione 400 30 100 200 20 100 100 20 100 8 Post Tefluthrin 100 Mesotrione-Cu 400 0 100 200 0 100 100 0 100 9 Post Thiamethoxam 70 Mesotrione 400 25 100 200 20 100 100 10 100 10 Post Thiamethoxam 70 Mesotrione-Cu 400 0 100 200 0 100 100 0 100 

1. A pesticidally active combination comprising an HPPD-inhibiting herbicide in the form of an agrochemically acceptable salt and an insecticide, provided that the HPPD-inhibiting herbicide is not a compound of formula (A)

wherein R^(a) is C₁₋₂ alkyl or chloro; R^(b) is hydrogen or C₁₋₄ alkyl; and R^(c) is C₁₋₄ alkyl.
 2. A pesticidally active combination according to claim 1, wherein the HPPD-inhibiting herbicide is selected from the group consisting of isoxazole, triketones, pyrazoles, benzobicyclon and ketospiradox.
 3. A pesticidally active combination according to claim 2, wherein the isoxazole is a compound of formula (IA)

wherein R is hydrogen or —O₂R³; R¹ is C₁₋₄ alkyl or C₃₋₆ cycloalkyl optionally substituted by C₁₋₆ alkyl; R² is independently selected from halogen, nitro, cyano, C₁₋₄ alkyl, C₁₋₄ haloalkyl, C₁₋₆ alkoxy, C₁₋₄ haloalkoxy, —(CR⁴R⁵)_(c)S(O)_(b)R⁶, —S(O)_(b)R⁶, —OSO₂R⁶ and —N(R⁷)SO₂R⁶; or two groups R², on adjacent carbon atoms of the phenyl ring may, together with the carbon atoms to which they are attached, form a 5- or 6-membered saturated or unsaturated heterocyclic ring containing up to three ring heteroatoms selected from nitrogen, oxygen and sulphur, which ring may be optionally substituted by one or more groups selected from halogen, nitro, C₁₋₄ alkyl, C₁₋₄ alkoxy, C₁₋₄ haloalkyl, C₁₋₄ haloalkoxy and —S(O)_(b)R⁶, it being understood that a sulphur atom, where present in the ring, may be in the form of a group —SO— or—SO₂—; R³ is C₁₋₄ alkyl; R⁴ and R⁵ are independently hydrogen or C₁₋₄ alkyl; R⁶ is C₁₋₄ alkyl, or phenyl or benzyl, each of phenyl and benzyl optionally bearing from one or five substituents which may be the same of different selected from the group consisting of halogen, C₁₋₄ alkyl, C₁₋₄ alkoxy, C₁₋₄ haloalkyl, C₁₋₄ haloalkoxy, nitro and —S(O)_(b)CH₃; R⁷ is hydrogen or C₁₋₆ alkyl; a is an integer from one to five; b is zero, one or two; and c is one or two (where c is two, the groups (CR⁴R⁵) may be the same or different.
 4. A pesticidally active combination according to claim 3, wherein R is hydrogen; R¹ is cyclopropyl; R² is halogen (preferably chloro), —S(O)_(b)CH₃, or C₁₋₄ haloalkyl (preferably trifluoromethyl); and a is two.
 5. A pesticidally active combination according to claim 2 wherein the triketone is a compound of formula (IB),

wherein each R⁸ independently represents (C₁₋₄)alkyl or —CO₂R¹¹; R⁹ represents a halogen atom; a straight- or branched-chain alkyl or alkoxy group containing up to six carbon atoms which is optionally substituted by one or more groups —OR¹² or one or more halogen atoms; or a group selected from nitro, cyano, —CO₂R¹³, —S(O)_(f)R¹², —O(CH₂)_(g)OR¹², —COR¹³, —NR¹³R¹⁴, —SO₂NR¹³R¹⁴, —CONR¹³R¹⁴, —CSNR¹³R¹⁴ and —OSO₂R¹⁵; each R¹⁰ independently represents halo, nitro, cyano, S(O)_(f)R¹⁶, OS(O)_(f)R¹⁶, C₁₋₆ alkyl, C₁₋₆ alkoxy, C₁₋₆ haloalkyl, C₁₋₆ haloalkoxy, carboxy, C₁₋₆ alkylcarbonyloxy, C₁₋₆ alkoxycarbonyl, C₁₋₆ alkylcarbonyl, amino, C₁₋₆ alkylamino, C₁₋₆ dialkylamino having independently the stated number of carbon atoms in each alkyl group, C₁₋₆ alkylcarbonylamino, C₁₋₆ alkoxycarbonylamino, C₁₋₆ alkylaminocarbonylamino, C₁₋₆ dialkylaminocarbonylamino having independently the stated number of carbon atoms in each alkyl group, C₁₋₆ alkoxycarbonyloxy, C₁₋₆ alkylaminocarbonyloxy, C₁₋₆ dialkylcarbonyloxy, phenylcarbonyl, substituted phenylcarbonyl, phenylcarbonyloxy, substituted phenylcarbonyloxy, phenylcarbonylamino, substituted phenylcarbonylamino, phenoxy or substituted phenoxy; R¹¹ is C₁₋₄alkyl; R¹² represents a straight- or branched-chain alkyl group containing up to six carbon atoms which is optionally substituted by one or more halogen atoms; R¹³ and R¹⁴ each independently represents a hydrogen atom; or a straight- or branched-chain alkyl group containing up to six carbon atoms which is optionally substituted by one or more halogen atoms; R¹⁵ represents a straight-or branched-chain alkyl, alkenyl or alkynyl group containing up to six carbon atoms optionally substituted by one or more halogen atoms; or a cycloalkyl group containing from three to six carbon atoms; R¹⁶ represents a straight- or branched-chain alkyl group containing up to six carbon atoms which is optionally substituted by one or more halogen atoms; d is zero or an integer from one to six; e is zero or an integer from one to four; f is zero, one or two; and g is one, two or three.
 6. A pesticidally active combination according to claim 5, wherein R⁹ is chloro, bromo, nitro, cyano, C₁₋₄ alkyl, —CF₃, —S(O)_(f)R², or —R¹²; each R¹⁰ is independently chloro, bromo, nitro, cyano, C₁₋₄ alkyl, —CF₃, —OR¹², —OS(O)_(f)R¹⁶ or —S(O)_(f)R¹⁶; d is zero and e is one or two.
 7. A pesticidally active combination according to claim 2, wherein the triketone is a compound of formula (IC)

wherein V is C₁₋₂ alkylene, which may be mono- or poly-substituted by R²⁹; or, when R²¹ and R²² are other than C₂₋₃ alkylene, W may additionally be carbonyl, oxygen or —NR³⁰-; W is CR³¹ or N(O)_(g); R²⁰, R²¹, R²² and R²³ are independently hydrogen, C₁₋₄ alkyl, phenyl, C₁₋₄ alkoxy, halogen, hydroxy, cyano, hydroxycarbonyl or C₁₋₄ alkoxycarbonyl; or R²¹ and R²² together are C₂₋₃ alkylene, which may be mono- or poly-substituted by R²⁸; R²⁴ is hydrogen, C₁₋₆ alkyl, C₁₋₆haloalkyl, C₂₋₆ alkenyl, C₂₋₆ haloalkenyl, C₁₋₂ alkoxycarbonyl- or phenyl-substituted vinyl, C₂₋₆ alkynyl, C₂₋₆ haloalkynyl, trimethylsilyl-, hydroxy-, C₁₋₆ alkoxy-, C alkoxycarbonyl- or phenyl-substituted ethynyl, C₃₋₆ allenyl, C₃₋₆ cycloalkyl, halo- or C₁₋₃ alkoxymethyl-substituted C₃₋₆ cycloalkyl, C₁₋₆alkoxy, C₃₋₆ alkenyloxy, C₃₋₆ alkynyloxy, C₁₋₆haloalkoxy, C₃₋₆ haloalkenyloxy, cyano-C₁₋₄ alkoxy, C₁₋₄ alkoxy-C₁₋₄ alkoxy, C₁₋₄ alkylthio-C₁₋₄ alkoxy, C₁₋₄ alkylsulfinyl-C₁₋₄ alkoxy, C₁₋₄ alkylsulfonyl-C₁₋₄ alkoxy, C₁₋₄ alkoxycarbonyl-C₁₋₄ alkoxy, C₁₋₆ alkylthio, C₁₋₆alkylsulfinyl, C₁₋₆ alkylsulfonyl, C₁₋₆ haloalkylthio, C₁₋₆ haloalkylsulfinyl, C₁₋₆ haloalkylsulfonyl, C₁₋₄ alkoxycarbonyl-C₁₋₄ alkylthio, C₁₋₄ alkoxycarbonyl-C₁₋₄ alkylsulfinyl, C₁₋₄ alkoxycarbonyl-C₁₋₄-alkylsulfonyl, C₁₋₆ alkylamino, di(C₁₋₆ alkyl)amino, C₁₋₃ alkoxy-C₁₋₃ alkylamino, C₁₋₃ alkoxy-C₁₋₃ alkyl-N(C₁₋₃ alkyl), C₁₋₆ alkylaminosulfonyl, di(C₁₋₆ alkyl)aminosulfonyl, C₁₋₄ alkylsulfonyloxy, C₁₋₄ haloalkylsulfonyloxy, C₁₋₄ alkylsulfonylamino, C₁₋₄ alkylsulfonyl-N(C₁₋₄ alkyl), cyano, carbamoyl, C₁₋₄ alkoxycarbonyl, formyl, halogen, rhodano, amino, hydroxy-C₁₋₄ alkyl, C₁₋₄ alkoxy-C₁₋₄ alkyl, C₁₋₄ alkylthio-C₁₋₄ alkyl, C₁₋₄ alkylsulfinyl-C₁₋₄ alkyl, C₁₋₄ alkylsulfonyl-C₁₋₄ alkyl, cyano-C₁₋₄ alkyl, C₁₋₆ alkylcarbonyloxy-C₁₋₄ alkyl, C₁₋₄ alkoxycarbonyl-C₁₋₄ alkyl, C₁₋₄ alkoxycarbonyloxy-C₁₋₄ alkyl, rhodano-C₁₋₄ alkyl, phenyl-C₁₋₄ alkyl, phenoxy-C₁₋₄ alkyl, benzyloxy-C₁₋₄ alkyl, benzoyloxy-C₁₋₄ alkyl, (2-oxiranyl)-C₁₋₄ alkyl, C₁₋₄ alkylamino-C₁₋₄ alkyl, di(C₁₋₄ alkyl)amino-C₁₋₄ alkyl, C-₁₋₂ alkylthiocarbonyl-C₁₋₄ alkyl or formyl-C₁₋₄ alkyl, or benzylthio, benzylsulfinyl, benzylsulfonyl, benzyloxy, benzyl, phenyl, phenoxy, phenylthio, phenylsulfinyl or phenylsulfonyl, wherein the phenyl-containing groups may themselves be substituted by C₁₋₃ alkyl, C₁₋₃ haloalkyl, C₁₋₃ alkoxy, C₁₋₃ haloalkoxy, halogen, cyano or by nitro; or R²⁴ is a three- to ten-membered monocyclic or fused bicyclic ring system, which may be aromatic, saturated or partially saturated and may contain from 1 to 4 hetero atoms selected from nitrogen, oxygen and sulfur, wherein the ring system is bonded to the group W-containing aromatic ring by way of a C₁₋₄ alkylene, C₂₋₄ alkenylene or C₂₋₄ alkynylene bridge which may be interrupted by oxygen, —N(C₁₋₄ alkyl)-, sulfur, sulfinyl, sulfonyl or by carbonyl, and each ring system may contain no more than two oxygen atoms and no more than two sulfur atoms, and the ring system may itself be mono-, di- or tri-substituted by C₁₋₆ alkyl, C₁₋₆ haloalkyl, C₂₋₆ alkenyl, C₂₋₆ haloalkenyl, C₂₋₆ alkynyl, C₂₋₆ haloalkynyl, C₁₋₆ alkoxy, C₁₋₆ haloalkoxy, C₃₋₆ alkenyloxy, C₃₋₆ alkynyloxy, hydroxy, mercapto, C₁₋₆ alkylthio, C₁₋₆ haloalkylthio, C₃₋₆ alkenylthio, C₃₋₆ haloalkenylthio, C₃₋₆ alkynylthio, C₁₋₄ alkoxy-C₁₋₃ alkylthio, C₁₋₄ alkylcarbonyl-C₁₋₃ alkylthio, C₁₋₄ alkoxycarbonyl-C₁₋₃ alkylthio, cyano-C₁₋₃-alkylthio, C₁₋₆ alkylsulfinyl, C₁₋₆ haloalkylsulfinyl, C₁₋₆ alkylsulfonyl, C₁₋₆ haloalkylsulfonyl, aminosulfonyl, C₁₋₄alkylaminosulfonyl, di(C₁₋₄ alkyl)aminosulfonyl, di(C₁₋₄ alkyl)amino, halogen, cyano, nitro, phenyl and/or by benzylthio, wherein phenyl and benzylthio may themselves be substituted on the phenyl ring by C₁₋₃ alkyl, C₁₋₃ haloalkyl, C₁₋₃ alkoxy, C₁₋₃ haloalkoxy, halogen, cyano or by nitro, and wherein substituents on the nitrogen in the heterocyclic ring are other than halogen; or R²⁴ is the group —D₁—D₃ or the group —D₂—D₁—D₃; R²⁵ is hydrogen, C₁₋₆ alkyl, C₁₋₆ haloalkyl, C₂₋₆ alkenyl, C₂₋₆ haloalkenyl, C₂₋₆ alkynyl, C₂₋₆ haloalkynyl, C₃₋₆ cycloalkyl, C₁₋₆ alkoxy, C₁₋₆ haloalkoxy, C₁₋₆ alkylthio, C₁₋₆ alkylsulfinyl, C₁₋₆ alkylsulfonyl, C₁₋₆ haloalkylthio, C₁₋₆ haloalkylsulfinyl, C₁₋₆ haloalkylsulfonyl, C₁₋₆ alkylsulfonyloxy, hydroxy, mercapto, amino, C₁₋₆ alkylamino, di(C₁₋₆ alkyl)amino, C₁₋₄ alkylsulfonylamino, C₁₋₄ alkylsulfonyl-N(C₁₋₄ alkyl)-, C₁₋₆ alkylaminosulfonyl, di(C₁₋₆ alkyl)aminosulfonyl, cyano, halogen, C₁₋₄ alkoxy-C₁₋₄ alkyl, C₁₋₄ alkylthio-C₁₋₄ alkyl, C₁₋₄ alkylsulfinyl-C₁₋₄ alkyl, C₁₋₄ alkylsulfonyl-C₁₋₄ alkyl, triazolyl, phenyl, phenylthio, phenylsulfinyl, phenylsulfonyl or phenoxy, wherein the phenyl-containing groups may be substituted by C₁₋₃ alkyl, C₁₋₃ haloalkyl, C₁₋₃ alkoxy, C₁₋₃ haloalkoxy, halogen, cyano or by nitro; R²⁶ is hydrogen, C₁₋₆ alkyl, hydroxy, C₁₋₆ alkoxy, C₁₋₆ haloalkoxy, C₃₋₆ alkenyloxy, C₃₋₆ haloalkenyloxy, C₃₋₆ alkynyloxy, C₁₋₄ alkylcarbonyloxy, C₁₋₄ alkylsulfonyloxy, phenylsulfonyloxy, C₁₋₄ alkylthio, C₁₋₄ alkylsulfinyl, C₁₋₄ alkylsulfonyl, C₁₋₄ alkylamino, di(C₁₋₄alkyl)amino, C₁₋₄ alkoxycarbonyl, C₁₋₄ haloalkyl, formyl, cyano, halogen, phenyl or phenoxy, wherein the phenyl-containing groups may themselves be substituted by C₁₋₃ alkyl, C₁₋₃ haloalkyl, C₁₋₃ alkoxy, C₁₋₃ haloalkoxy, halogen, cyano or by nitro; or R²⁶ is a three- to ten-membered monocyclic or, together with R²⁵ or R²⁷, fused bicyclic ring system, which may contain from 1 to 4 hetero atoms selected from nitrogen, oxygen and sulfur, wherein, when the ring system is not fused, it is bonded to the W-containing aromatic ring, either directly or by way of a C₁₋₄ alkylene, C₂₋₄ alkenylene or C₂₋₄ alkynylene bridge which may be interrupted by oxygen, —N(C₁₋₄ alkyl)-, sulfur, sulfinyl, sulfonyl or by carbonyl, and the ring system may contain no more than two oxygen atoms and no more than two sulfur atoms, and the ring system may itself be mono-, di- or tri-substituted by C₁₋₆ alkyl, C₁₋₆ haloalkyl, C₂₋₆ alkenyl, C₂₋₆ haloalkenyl, C₂₋₆ alkynyl, C₂₋₆ haloalkynyl, C₁₋₆ alkoxy, C₁₋₆ haloalkoxy, C₃₋₆ alkenyloxy, C₃₋₆ alkynyloxy, C₁₋₆ alkylthio, C₁₋₆ haloalkylthio, C₃₋₆ alkenylthio, C₃₋₆ haloalkenylthio, C₃₋₆ alkynylthio, C₁₋₄ alkoxy-C₁₋₂ alkylthio, C₁₋₄ alkylcarbonyl-C₁₋₂ alkylthio, C₁₋₄ alkoxycarbonyl-C₁₋₂ alkylthio, cyano-C₁₋₄ alkylthio, C₁₋₆-alkylsulfinyl, C₁₋₆ haloalkylsulfinyl, C₁₋₆ alkylsulfonyl, C₁₋₆ haloalkylsulfonyl, aminosulfonyl, C₁₋₄ alkylaminosulfonyl, di(C₁₋₄ alkyl)aminosulfonyl, amino, C₁₋₄ alkylamino, di(C₁₋₄ alkyl)amino, halogen, cyano, nitro, phenyl and by/or benzylthio, wherein phenyl and benzylthio may themselves be substituted on the phenyl ring by C₁₋₃ alkyl, C₁₋₃ haloalkyl, C₁₋₃ alkoxy, C₁₋₃ haloalkoxy, halogen, cyano or by nitro, and wherein substituents on the nitrogen in the heterocyclic ring are other than halogen; R²⁷ is hydrogen, C₁₋₆ alkyl, C₁₋₆ haloalkyl, C₂₋₆ alkenyl, C₂₋₆ haloalkenyl, C₂₋₆ alkynyl, C₂₋₆ haloalkynyl, C₃₋₆ cycloalkyl, C₁- alkoxy, C₁₋₆ haloalkoxy, C₁₋₆ alkylthio, C₁₋₆ alkylsulfinyl, C₁₋₆ alkylsulfonyl, C₁₋₆ haloalkylthio, C₁₋₆ haloalkylsulfinyl, C₁₋₆ haloalkylsulfonyl, amino, C₁₋₆ alkylamino, di(C₁₋₆ alkyl)amino, C₁₋₄ alkylsulfonyl-N(C₁₋₄ alkyl)-, C₁₋₆ alkylaminosulfonyl, di(C₁₋₆-alkyl)aminosulfonyl, cyano, halogen, C₁₋₄ alkoxy-C₁₋₄ alkyl, C₁₋₄ alkylthio-C₁₋₄ alkyl, C₁₋₄ alkylsulfinyl-C₁₋₄ alkyl, C₁₋₄ alkylsulfonyl-C₁₋₄ alkyl, phenyl, phenylthio, phenylsulfinyl, phenylsulfonyl or phenoxy, wherein phenyl groups may themselves be substituted by C₁₋₃ alkyl, C₁₋₃ haloalkyl, C₁₋₃ alkoxy, C₁₋₃ haloalkoxy, halogen, cyano or by nitro; R²⁸ and R²⁹ are each independently hydrogen, C₁₋₄ alkyl, phenyl, C₁₋₄ alkoxy, halogen, hydroxy, cyano, hydroxycarbonyl or C₁₋₄ alkoxycarbonyl; R³⁰ is C₁₋₄ alkyl, alkoxycarbonyl or C₁₋₄ alkylcarbonyl; R³¹ is hydrogen, C₁₋₆ alkyl, hydroxy, C₁₋₆ alkoxy, C₁₋₆ haloalkoxy, C₃₋₆ alkenyloxy, C₃₋₆ haloalkenyloxy, C₃₋₆ alkynyloxy, C₁₋₄ alkylcarbonyloxy, C₁₋₄ alkylsulfonyloxy, phenylsulfonyloxy, C₁₋₆ alkylthio, C₁₋₆ alkylsulfinyl, C₁₋₆ alkylsulfonyl, C₁₋₆ alkylamino, di(C₁₋₆ alkyl)amino, C₁₋₃ alkoxy-C₁₋₃ alkylamino, C₁₋₃ alkoxy-C₁₋₃ alkyl-N(C₁₋₃ alkyl)-, C₁₋₄ alkoxycarbonyl, C₁₋₆ haloalkyl, formyl, cyano, halogen, phenyl or phenoxy, wherein the phenyl-containing groups may themselves be substituted by C₁₋₃ alkyl, C₁₋₃ haloalkyl, C₁₋₃ alkoxy, C₁₋₃ haloalkoxy, halogen, cyano or by nitro; or R³¹ is a three- to ten-membered monocyclic or, together with R²⁴ or R²⁵ fused bicyclic ring system, which may be interrupted once or up to three times by heterocyclic substituents selected from oxygen, sulfur, S(O), SO₂, N(R³²), carbonyl and C(═NOR³³), and wherein, when the ring system is not fused, it is bonded to the carbon atom of the substituent W, either directly or by way of a C₁₋₄ alkylene, C₂₋₄ alkenylene or C₂₋₄ alkynylene bridge which may be interrupted by oxygen, —N(C₁₋₄ alkyl)-, sulfur, sulfinyl or by sulfonyl, and the ring system may contain no more than two oxygen atoms and no more than two sulfur atoms, and the ring system may itself be mono-, di- or tri-substituted by C₁₋₆ alkyl, C₁₋₆ haloalkyl, C₂₋₆ alkenyl, C₂₋₆ haloalkenyl, C₂₋₆ alkynyl, C₂₋₆ haloalkynyl, C₁₋₆ alkoxy, C₁₋₆ haloalkoxy, C₃₋₆ alkenyloxy, c₃₋₆ alkynyloxy, C₁₋₆ alkylthio, C₁₋₆ haloalkylthio, C₃₋₆ alkenylthio, C₃₋₆ haloalkenylthio, C₃₋₆ alkynylthio, C₁₋₄ alkoxy-C₁₋₂ alkylthio, C₁₋₄ alkylcarbonyl-C₁₋₂-alkylthio, C₁₋₄ alkoxycarbonyl-C₁₋₂ alkylthio, cyano-₁₋₄ alkylthio, C₁₋₆ alkylsulfinyl, C₁₋₆ haloalkylsulfinyl, C₁₋₆ alkylsulfonyl, C₁₋₆ haloalkylsulfonyl, aminosulfonyl, C₁₋₄ alkylaminosulfonyl, di(C₁₋₄ alkyl)aminosulfonyl, di(C₁₋₄ alkyl)amino, halogen, cyano, nitro, phenyl, benzyloxy and/or by benzylthio, and wherein the phenyl-containing groups may themselves be substituted on the phenyl ring by C₁₋₃ alkyl, C₁₋₃ haloalkyl, C₁₋₃ alkoxy, C₁₋₃ haloalkoxy, halogen, cyano or by nitro, and wherein substituents on the nitrogen in the heterocyclic ring are other than halogen; or R³¹ is the group —D₄—D₆ or the group —D₅—D₄—D₆; R³² is hydrogen, C₁₋₄ alkyl, C₁₋₄ alkylthio-C₁₋₄ alkylcarbonyl, C₁₋₄ alkylsulfinyl-C₁₋₄-alkylcarbonyl, C₁₋₄ alkylsulfonyl-C₁₋₄ alkylcarbonyl, C₁₋₄ alkoxycarbonyl, C₁₋₄ alkylcarbonyl, phenylcarbonyl or phenyl, wherein the phenyl groups may themselves be substituted by C₁₋₄ alkyl, C₁₋₄ haloalkyl, C₁₋₄ alkoxy, C₁₋₄ haloalkoxy, C₁₋₄ alkylcarbonyl, C₁₋₄ alkoxycarbonyl, C₁₋₄ alkylamino, di(C₁₋₄ alkyl)amino, C₁₋₄ alkylthio, C₁₋₄ alkylsulfinyl, C₁₋₄ alkyl-SO₂, C₁₋₄ alkyl-S(O)₂O, C₁₋₄ haloalkylthio, C₁₋₄ haloalkylsulfinyl, C₁₋₄haloalkyl-SO₂, C₁₋₄ haloalkyl-S(O)₂O, C₁₋₄ alkyl-S(O)₂NH, C₁₋₄ alkyl-S(O)₂N(C₁₋₄ alkyl)-, halogen, nitro or by cyano; R³³ is hydrogen, C₁₋₄ alkyl, C₃₋₄ alkenyl, C₃₋₄ alkynyl or benzyl; h is 0 or 1; D₁ is oxygen, —O(CO)—, —(CO)O—, —O(CO)O—, —N(C₁₋₄ alkyl)—O—, —O—N(C₁₋₄ alkyl)-, thio, sulfinyl, sulfonyl, —SO₂N(C₁₋₄ alkyl)-, —N(C₁₋₄ alkyl)SO2—, —N(C₁₋₂ alkoxy-C₁₋₂ alkyl)SO₂— or —N(C₁₋₄ alkyl)-; D₂ is a C₁₋₆ alkylene, C₃₋₆ alkenylene or C₃₋₆ alkynylene chain, which may be mono- or poly-substituted by halogen or by D₇, the unsaturated bonds of the chain not being bonded directly to the substituent D₁; D₃ and D₆ are each independently of the other a C₁₋₈ alkyl, C₃₋₆ alkenyl or C₃₋₆ alkynyl group, which may be mono- or poly-substituted by halogen, hydroxy, amino, formyl, nitro, cyano, mercapto, carbamoyl, C₁₋₆ alkoxy, C₁₋₆ alkoxycarbonyl, C₂₋₆ alkenyl, C₂₋₆ haloalkenyl, C₂₋₆ alkynyl, C₂₋₆ haloalkynyl, C₃₋₆ cycloalkyl, halo-substituted C₃₋₆ cycloalkyl, C₃₋₆ alkenyloxy, C₃₋₆ alkynyloxy, C₁₋₆ haloalkoxy, C₃₋₆ haloalkenyloxy, cyano-C₁₋₆ alkoxy, C₁₋₆ alkoxy-C₁₋₆ alkoxy, C₁₋₆ alkoxy-C₁₋₆ alkoxy-C₁₋₆ alkoxy, C₁₋₄ alkylthio-C₁₋₆ alkoxy, C₁₋₆ alkylsulfinyl-C₁₋₆ alkoxy, C₁₋₆ alkylsulfonyl-C₁₋₆ alkoxy, C₁₋₆ alkoxycarbonyl-C₁₋₆ alkoxy, C₁₋₆ alkoxycarbonyl, C₁₋₆ alkylcarbonyl, C₁₋₆ alkylthio, C₁₋₆ alkylsulfinyl, C₁₋₆ alkylsulfonyl, C₁₋₄ haloalkylthio, C₁₋₆ haloalkylsulfinyl, C₁₋₆ haloalkylsulfonyl, oxiranyl which may itself be substituted by C₁₋₆ alkyl, (3-oxetanyl)-oxy which may itself be substituted by C₁₋₆ alkyl, benzyloxy, benzylthio, benzylsulfinyl, benzylsulfonyl, C₁₋₆ alkylamino, di(C₁₋₆ alkyl)amino, C₁₋₄ alkyl-S(O)₂O, di(C₁₋₄ alkyl)aminosulfonyl, rhodano, phenyl, phenoxy, phenylthio, phenylsulfinyl or by phenylsulfonyl, and wherein the phenyl- or benzyl-containing groups may themselves be substituted by one or more C₁₋₆ alkyl, C₁₋₆ haloalkyl, C₁₋₆ alkoxy, C₁₋₆ haloalkoxy, halogen, cyano, hydroxy or nitro groups; or D₃ and D₆ are each independently of the other phenyl, which may be mono- or poly-substituted by C₁₋₆ alkyl, C₁₋₆ haloalkyl, C₁₋₆ alkoxy, C₁₋₆ haloalkoxy, halogen, cyano, hydroxy or by nitro; or D₃ and D₆ are each independently of the other C₃₋₆ cycloalkyl, C₁₋₆ alkoxy- or C₁₋₆ alkyl-substituted C₃₋₆ cycloalkyl, 3-oxetanyl or C₁₋₆ alkyl-substituted 3-oxetanyl; or D₃ and D₆ are each independently of the other a three- to ten-membered monocyclic or fused bicyclic ring system, which may be aromatic, saturated or partially saturated and may contain from 1 to 4 hetero atoms selected from nitrogen, oxygen and sulfur, wherein the ring system is bonded to the substituent D₁ or D₄ directly or by way of a C₁₋₄ alkylene, C₂₋₄ alkenylene, C₂₋₄ alkynylene, —N(C₁₋₄ alkyl)-C₁₋₄ alkylene, —S(O)—C₁₋₄ alkylene or —SO₂-C₁₋₄ alkylene group, and each ring system may contain no more than two oxygen atoms and no more than two sulfur atoms, and the ring system may itself be mono-, di- or tri-substituted by C₁₋₆ alkyl, C₁₋₆ haloalkyl, C₂₋₆ alkenyl, C₂₋₆ haloalkenyl, C₂₋₆ alkynyl, C₂₋₆ haloalkynyl, C₁₋₆ alkoxy, hydroxy, C₁₋₆ haloalkoxy, C₃₋₆ alkenyloxy, C₃₋₆ alkynyloxy, mercapto, C₃₋₆ alkylthio, C₁₋₆haloalkylthio, C₃₋₆ alkenylthio, C₃₋₆ haloalkenylthio, C₃₋₆ alkynylthio, C₁₋₃ alkoxy-C₁₋₃ alkylthio, C₁₋₄ alkylcarbonyl-C₁₋₂ alkylthio, C₁₋₄ alkoxycarbonyl-C₁₋₂ alkylthio, cyano-C₁₋₃ alkylthio, C₁₋₆ alkylsulfinyl, C₁₋₆ haloalkylsulfinyl, C₁₋₆ alkylsulfonyl, C₁₋₆ haloalkylsulfonyl, aminosulfonyl, C₁₋₂ alkylaminosulfonyl, di(C₁₋₂ alkyl)aminosulfonyl, di(C₁₋₄ alkyl)amino, C₁₋₆ carbonylamino, halogen, cyano, nitro, phenyl, benzyloxy and/or by benzylthio, wherein the phenyl groups may themselves be substituted on the phenyl ring by C₁₋₃ alkyl, C₁₋₃ haloalkyl, C₁₋₃ alkoxy, C₁₋₃ haloalkoxy, halogen, cyano or by nitro, and wherein the substituents on the nitrogen in the heterocyclic ring are other than halogen; D₄ is oxygen, —O(CO)—, —(CO)O—, —O(CO)O—, —N(C₁₋₄ alkyl)—O—, —O—N(C₁₋₄ alkyl)-, sulfur, sulfinyl, sulfonyl, —SO₂N(C₁₋₄ alkyl)-, —N(C₁₋₄ alkyl)SO₂—, —N(C₁₋₂ alkoxy-C₁₋₂ alkyl)SO₂— or —N(C₁₋₄ alkyl)-; D₅ is a C₁₋₆ alkylene, C₃₋₆ alkenylene or C₃₋₆ alkynylene chain, which may be mono- or poly- substituted by halogen or by D₈, the unsaturated bonds of the chain not being bonded directly to the substituent D₄; D₇ and D₈ are each independently of the other hydroxy, C₁₋₆ alkoxy, (C₃₋₆ cycloalkyl)oxy, C₁₋₆ alkoxy-C₁₋₆ alkoxy, C₁₋₆ alkoxy-C₁₋₆ alkoxy-C₁₋₆ alkoxy or C₁₋₆ alkylsulfonyloxy; and agronomically acceptable salts/N-oxides/isomers/enantiomers of such compounds.
 8. A pesticidally active combination according to claim 2, wherein the triketone is a compound of formula (ID)

wherein R³⁴ and R³⁵ are both hydrogen or together form an ethylene bridge.
 9. A pesticidally active combination according to claim 2, wherein the pyrazole is a compound of formula (IE)

wherein R³⁶, R³⁷, R³⁸ and R³⁹ are each independently selected from hydrogen, halo or C₁₋₄ alkyl; X is —SO₂— or CH₂CO—; j is2 or 3; and k is zero or
 1. 10. A pesticidally active combination according to claim 8, wherein R³⁶, R³⁷, R³⁸ and R³⁹ are each independently hydrogen, chloro or methyl.
 11. A pesticidally active combination according to claim 2, wherein the HPPD-inhibiting herbicide is a compound of formula (IF)


12. A pesticidally active combination according to claim 2, wherein the HPPD-inhibiting herbicide is a compound of formula (IG)


13. A pesticidally active combination according to any preceding claim, wherein the agrochemically acceptable salt is formed using amines, alkali metal bases, alkaline earth metal cases, quaternary ammonium bases and metal chelates.
 14. A pesticidally active combination according to any preceding claim, wherein the insecticide is selected from the group consisting of Abamectin, Acephate, Acetamiprid, Acrinathrin, Acrylonitrile, Alanycarb, Aldicarb, Aldoxycarb, Aldrin, Allethrin (1R-isomers), Allyxycarb, Alpha-cypermethrin, Phosphine (Aluminium Phosphide), Amidithion, Aminocarb, Amiton, Amitraz, Anabasine, Athidathion, Azadirachtin, Azamethiphos, Azinphos-ethyl, Azinphos-methyl, Azothoate, Bacillus sphaericus, Bacillus thuringiensis, Bacillus thuringiensis delta endotoxins, Barium polysulfide, Bendiocarb, Benfuracarb, Bensultap, Benzoximate, Beta-cyfluthrin, Beta-cypermethrin, Bifenthrin, Bioallethrin, Bioallethrin S-cyclopentenyl isomer, Biopermethrin, Bioresmethrin, Bistrifluron, Borax, Bromfenvinfos, Bromophos, Bromophos-ethyl, Bufencarb, Buprofezin, Butacarb, Butathiofos, Butocarboxim, Butonate, Butoxycarboxim, Cadusafos, Hydrogen cyanide, Calcium polysulfide, Camphechlor, Carbanolate, Carbaryl, Carbofuran, Carbon disulfide, Carbon tetrachloride, Carbophenothion, Carbosulfan, Cartap, Chlorbicyclen, Chlordane, Chlordecone, Chlordimeform, Chlorethoxyfos, Chlorfenapyr, Chlorfenvinphos, Chlorfluazuron, Chlormephos, Chloropicrin, Chlorphoxim, Chlorprazophos, Chlorpyrifos, Chlorpyrifos-methyl, Chlorthiophos, Chromafenozide, Clothianidin, Coumaphos, Coumithoate, Crotoxyphos, Crufomate, Cryolite, Cyanofenphos, Cyanophos, Cyanthoate, Cycloprothrin, Cyfluthrin, Cyhalothrin, Cypermethrin, Alpha-cypennethri, Beta-Cypermethrin, Theta-cypermethrin, Zeta-cypermethrin, Cyphenothrin, Cyromazine, Dazomet, Bromo-DDT, DDT, pp′-DDT, Decarbofuran, Deltamethrin, Demephion, Demephion-O, Demephion-S, Demeton, Demeton-O, Demeton-S, Demeton-methyl, Demeton-O-methyl, Demeton-S-methyl, Demeton-S-methylsulphon, Diafenthiuron, Dialifos, Diazinon, Dicapthon, Dichlofenthion, Dichlorvos, Dicrotophos, Dicyclanil, Dieldrin, Diflubenzuron, Dimefox, Dimethoate, Dimethrin, Dimethylvinphos, Dimetilan, Dinex, Dinotefuran, Diofenolan, Dioxabenzofos, Dioxacarb, Dioxathion, Disulfoton, Dithicrofos, DNOC, Emamectin, EMPC, Empenthrin, Endosulfan, Endothion, EPN, Epofenonane, Esfenvalerate, Ethiofencarb, Ethion, Ethoate-methyl, Ethoprophos, Ethylene dibromide, Ethylene dichloride, Etofenprox, Etrimfos, Famphur, Fenchlorphos, Fenethacarb, Fenfluthrin, Fenitrothion, Fenobucarb, Fenoxycarb, Fenpirithrin, Fenpropathrin, Fensulfothion, Fenthion, Fenvalerate, Fipronil, Flonicamid, Flucofuron, Flucycloxuron, Flucythrinate, Flucythrinate, Flucythrinate, Flufenprox, Flumethrin, Fluvalinate, Fonofos, Formetanate, Formothion, Fosmethilan, Fospirate, Fosthiazate, Fosthietan, Furathiocarb, Furethrin, gamma-HCH, GY-81, Halofenozide, Heptachlor, Heptenophos, Hexaflumuron, Hydramethylnon, Hydrogen cyanide, Hydroprene, Inidacloprid, Imiprothrin, Indoxacarb, IPSP, Isazofos, Isobenzan, Isodrin, Isofenphos, Isoprocarb, Isopropyl O-(methoxyaminothiophosphoryl)salicylat, Isotlioate, Isoxathion, Jodfenphos, Kelevan, Kinoprene, Lambda-cyhalothrin, Lirimfos, Lufenuron, Lythidathion, Phosphine, Malathion, Mazidox, Mecarbam, Mecarphon, Menazon, Mephosfolan, Mercurous chloride, Mesulfenfos, Metam, Methacrifos, Methamidophos, Methidathion, Methiocarb, Methocrotophos, Methomyl, Methoprene, Methothorin, Methoxychlor, Methoxyfenozide, Methyl bromide, Methyl isothiocyanate, Metolcarb, Metoxadiazone, Mevinphos, Mexacarbate, Milbemectin, Mipafox, Mirex, Monocrotophos, Morphothion, Naled, Nicotine, Nifluridide, Nitenpyram, Nithiazine, Nitrilacarb, Novaluron, Ölsäure, Omethoate, Oxamyl, Oxydemeton-methyl, Oxydeprofos, Oxydisulfoton, Parathion, Parathion-methyl, Pentachlorophenol, Permethrin, Petroleum Öl, Phenkapton, Phenothrin, Phenthoate, Phorate, Phosalone, Phosfolan, Phosmet, Phosnichlor, Phosphamidon, Phoxim, Phoxim-methyl, Pirimetaphos, Pirimicarb, Pirimiphos-ethyl, Pirimiphos-methyl, Prallethrin, Primidophos, Profenofos, Promacyl, Promecarb, Propaphos, Propetamphos, Propoxur, Prothiofos, Prothoate, Pymetrozine, Pyraclofos, Pyrazophos, Pyresmethrin, Pyrethrins, Pyridaben, Pyridaphenthion, Pyrimidifen, Pyrimitate, Pyriproxyfen, Quinalphos, Quinalphos-methyl, Quinothion, Resmethrin, Rotenone, RU 15525, Sabadilla, Schradan, Silafluofen, Sodium fluoride, Sodium hexafluorosilicate, Pentachlorophenol, Sophamide, Spinosad, Sulcofuron, Sulfluramid, Sulfotep, Sulfuryl fluoride, Sulprofos, Tau-fluvalinate, Tazimcarb, TDE, Tebufenozide, Tebupirimfos, Teflubenzuron, Tefluthrin, Temephos, TEPP, Terallethrin, Terbufos, Tetrachlorvinphos, Tetramethrin, Tetramethrin [(1R)-isomers], Thiacloprid, Thiamethoxam, Thicrofos, Thiocarboxime, Thiocyclam, Thiodicarb, Thiofanox, Thiometon, Thiosultap-sodium, Tolfenpyrad, Tralomethrin, Transfluthrin, Transpermethrin, Triazamate, Triazofos, Trichlorfon, Trichloronat, Tridec-4-enyl acetate, Trifenofos, Triflumuron, Trimethacarb, Triprene, Vamidothion, XMC, Xylylcarb, Spirodiclofen, Acetoprole, Fluacrypyrim, Pyridalyl, Noviflumuron, Flufenerim, Amidoflumet, Ethiprole, Acequinocyl, Etoxazole, Bifenazate, Spiromesifen and ZXI
 8901. 15. A pesticidally active combination according to any preceding claim, which comprises one or more additional active ingredients.
 16. A pesticidally active combination according to claim 14, wherein the one or more additional active ingredients are herbicides and/or safeners.
 17. A pesticidally active combination according to claim 15, wherein the one or more additional active ingredients are selected from the group consisting of atrazine, terbuthylazine, metolachlor, s-metolachlor, benoxacor, furilazole, dichlormid, flurazole acetochlor, p-dimethenamid, glyphosate, cloquintocet, fluxofenim, nicosulfuron, rimsulfuron, foramsulfuron, isoxadifene, prosulfuron, primisulfuron, dicamba, trifloxysufuron.
 18. A method of controlling undesired plant growth in crops of useful plants, said method comprising the application of a pesticidally active combination comprising an HPPD-inhibiting herbicide in the form of an agrochemically acceptable salt and an insecticide.
 19. A pesticidally active pre-mix composition comprising an HPPD-inhibiting herbicide in the form of an agrochemically acceptable salt and an insecticide. 